According to the law of conservation of mass, the total mass of reactants and products in a chemical reaction is equal.
In a chemical process, the total mass of the reactants will be much smaller than the total mass of the products. A. Sodium metal and chlorine gas combine to generate sodium chloride in the chemical reaction shown below. will be 100 grammes exactly.
Chlorine gas and sodium metal combine to form sodium chloride (table salt) The mass of sodium chloride generated when the reaction is finished will be exactly 100 grammes if the combined mass of the reactants is 50 grammes.
A sodium cation (Na+) and a chloride anion are created when a sodium atom transfers an electron to a chlorine atom.
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FILL IN THE BLANK. the heat that is felt from a hot object is called ________ radiation.
The heat that is felt from a hot object is called infrared radiation.
infrared radiation is the section of the electromagnetic spectrum that extends from the long wavelength end means from red to the microwave range. it can be detected as a sensation of warmth on the skin.
Infrared is electromagnetic radiation which has wavelengths longer than wavelength of visible light. For this reason it is invisible to the human eye.
The fire and sun are two examples of infrared radiation.
Infrared radiation is a spectrum of frequencies that is generated when atoms acquire and release energy. Electromagnetic radiation includes all these radiations: gamma, X-rays, visible, ultraviolet, infrared, radio waves, and microwave.
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what are directions of acceleration and net force if the speed of an object is changing while rotating in a circular motion?
In circular motion, an object is constantly changing direction, so its acceleration is always directed towards the center of the circle. This type of acceleration is called centripetal acceleration.
The net force acting on the object is also directed towards the center of the circle and is called the centripetal force. The magnitude of the centripetal acceleration and the centripetal force depend on the speed of the object, the radius of the circular path, and the mass of the object. They can be calculated using the following formulas:
Centripetal acceleration (a):
a = v^2/r
where v is the speed of the object, and r is the radius of the circular path.
Centripetal force (F):
F = ma = m(v^2/r)where m is the mass of the object.
So, if the speed of an object is changing while it is rotating in a circular motion, the direction of the acceleration and the net force acting on the object will always be towards the center of the circle. The magnitude of the acceleration and the force will depend on the speed, radius, and mass of the object.
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What is the force when one object is sliding across another?
When two items are slipping by one another, it is abrasive. Sliding friction is the force that prevents motion as a simple result of the two surfaces rubbing against one another.
What is the force of sliding friction?
The force for friction force is inversely related to the weight while travelling in a plane parallel to the surface. In particular, the force would be equal to the weight of the object if the body was sliding across a horizontal surface. The sliding force first few of a normal force divided by the amount of sliding friction.
Does the amount of in contact surface have an impact on the sliding friction?
It depends on the pull of gravity and substance, both of which are important. Changes in the sliding friction are unaffected by
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How genetic factors affect health?
The likelihood of having a kid with a birth defect, a developmental disability, or a condition like cancer or heart disease has been linked to several genetic abnormalities. We can better grasp how medical disorders develop thanks to genetics.
How do hereditary characteristics impact people's health and the general public's?The interplay between inherited gene variations and environmental factors, such as chemicals, physical factors, infectious agents, behavioral or nutritional factors, result in risks for nearly all human diseases.
How can genetics impact how you live your life?Additionally, genes can raise a family's risk of contracting specific diseases. Families share environments, diets, and routines. These have an impact on our long-term health. Your family learns a lot about you, including what can make you ill.
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A net force of 12 N is exerted on a box to cause it to accelerate at a rate 4 m/s2 . Determine the mass of the box?
Answer:
3.0 kg
Explanation:
F = ma
m = F/a = (12 N) / (4 m/s²) = 3.0 kg
a slingshot consists of a light leather cup attached between 2 rubber bands. if it takes force of 32 N to stretch the bands 1,2 cm what is the equilibrium spring constant of the 2 rubber bands
The equivalent spring constant of the two rubber bands is 2667 N/m
We can solve the problem by using Hooke's law, which states that the strain of the material is proportional to the applied stress within the elastic limit of that material. This can be represented by the formula:
[tex]F=-kx[/tex]
where
F is the force applied to the rubber bands
k is the equivalent spring constant of the two rubber bands
x is the stretching constant of the two rubber bands
In this problem, we have been given the following values
F = 32 N is the force applied
x = 1.2 cm
= 0.012 m is the stretching of the bands
Solving for k, we find the equivalent spring constant of the two rubber bands:
[tex]k=\frac{F}{x}[/tex]
k=[tex]\frac{32}{0.012}[/tex]
k = 2667 N/m
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What are the similarities and differences between solar and wind energy?
Solar energy is less effective than wind energy. The atmosphere receives less CO2 from wind turbines. Solar panels emit 70 grams of CO2 per hour, compared to 4.64 grams per hour from wind turbines.
What are the parallels between solar and wind energy?The renewable energy sector features two major players: wind and solar power. In addition to reducing carbon emissions from fossil fuels, they also serve as endless energy sources.
How do wind energy and wind power differ from one another?The technique of using the wind to produce mechanical or electrical power is referred to as "wind power" or "wind energy," respectively. You can use this mechanical power for certain purposes or turn it into electricity using a generator.
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What are Java programs called?
Java programs are called java development kit.
The Java programming language class and object oriented language, one that aims to have as few implementation dependencies as feasible. Because it is a general-purpose language, compiled Java code can run on any platforms that accept Java without the need to recompile. This is known as writing once, running anywhere. without regarding the underlying computer architecture, Java applications are often run on any Java virtual machine (JVM). Although Java has fewer low-level features than either C or C++, it has syntax that is similar to each of them.
These programing languages are being employed in various field ranging from biology to computer science.
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rita accelerates a 0.40-kg ball from rest to 9.0 m/s during the 0.15 s in which her foot is in contactwith the ball. what average force does she apply to the ball during the kick?
Rita applies an average force of 24 Newton to the ball during the kick.
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).
Given that Rita accelerates a 0.40-kg ball from rest to 9.0 m/s during the 0.15 s.
The acceleration of the ball = change in speed / time interval
= ( final speed - initial speed) / time interval
= ( 9.0 m/s - 0 m/s)/0.15 s
= 60m/s^2.
Hence, according to Newton's 2nd law of motion:
The average force applied to the ball = mass × acceleration
= 0.40 kg × 60m/s^2.
= 24 Newton.
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_______ is a space where you can drive without restrictions to your line of sight or intended path of travel
(An open zone) is a space where we can drive without restrictions to our line of sight or intended path of travel.
What is an open zone?There are at least three types of zone we may encounter on the road, which are:
Open zone. The open zone provides a wide, larger open space to drive and we can drive without restriction. We are free to change lanes or move forward without conflict.Closed zone. This path is not available to drive due to some restriction or simply because the space is unavailable in a particular zone.Changing zone. This zone changes from an open to a closed zone. So we have to maintain specific speed limits, visibility, environmental conditions, etc while passing through.Learn more about space management here https://brainly.com/question/28701656
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a ball of mass m is droppe dfrom rest at a height h and collides elastically with the floor, rebounding to its original height. what is the magnitude of the net impulse on the ball during the collision with the floor
The duration of the ball's contact with the ground cannot be calculated without knowledge of mass.
What are some instances of mass?We see mass in everything around us. For instance, objects like a table, chair, bed, football, glass, and sometimes even air have mass. All items have mass, which determines whether they are light or heavy.
What really is mass in plain English?An object's mass is determined by how much matter it has. Anything that has more substance will weigh heavier overall. For instance, because an elephant contains more stuff than a mouse does, it has a heavier mass. However much matter an object contains is not determined by size.
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An animal moves a distance of 160m in 40 seconds. Calculate the speed.
Answer:
To calculate the speed of the animal, we need to divide the distance it travels by the time it takes to travel that distance. In this case, the distance is 160 meters and the time is 40 seconds, so the speed is:
speed = distance / time = 160m / 40s = 4 m/s
This means that the animal was moving at a speed of 4 meters per second.
Explanation:
a tug-of-war that results in one team pulling the other across the line is an example of
A tug-of-war that results in one team pulling the other across the line is an example of reaction force.
What is reaction force?A reaction force can be described as the consequence of an action force which is opposite in direction.
It should be noted that the Newton's third law of motion is the one that deals with these two forces, which can be considered as the action and reaction forces however the Newton's third law made us to understand that for every action, there is an equal and opposite reaction, hence the case above can be seen as an example of reaction force.
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100 Review Sheet 7 4. Label the integumentary structures and areas indicated in the diagram. 5. Label the layers of the epidermis in thick skin. Then, complete the statements that follow EUR a. Glands that respond to rising androgen levels are the glands are epidermal cells that play a role in the immune response. C Tactile corpuscles are located in the corpuscles are located deep in the dermis. What substance is manufactured in the skin and plays a role in calcium absorption elsewhere in the body
With the aid of sunshine, the skin produces vitamin D, which aids in the bones' ability to absorb calcium.
Increased intestinal absorption of calcium, magnesium, and phosphate is one of vitamin D's many biological effects. It is also one of a class of fat-soluble secosteroids. Vitamins D (cholecalciferol) and D2 are the most significant substances in this category in people (ergocalciferol).
The primary natural source of the vitamin is cholecalciferol production, which occurs in the lower layers of the epidermis of the skin as a result of a chemical process that is reliant on sun exposure (specifically UVB radiation).
The diet and supplements both contain cholecalciferol and ergocalciferol. Vitamin D is only present in considerable concentrations in a select few meals, such the meat of fatty fish. Cow's milk, plant-based milk replacements, and a lot of breakfast cereals are all vitamin D-fortified in the United States and other nations.
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When stars are moving away from a telescope, what shade do they appear to be compared to the normal light they emit?
Answer:
Redder-Blue
Explanation:
A student is comparing four different types of cells and observes that one contains many more mitochondria than the others. The student should conclude that the cell with the greatest number of mitochondria is most likely which of the following? O Epidermal cell
O Muscle cell
O Fat cell
O Sebaceous gland cell
Answer:
muscle cell
Explanation:
A planet orbits a star in the path shown in the figure. The planet's mass is much smaller than the star's mass. Which two of the following claims are correct about the accelerations associated with the planet, star, and planet-star system? Select two answers. Justify your selections. A .Both the planet and the star accelerate, because each object exerts a force on the other object. B. Only the planet accelerates, because a force is exerted on the planet but not on the star. C. The center of mass of the planet-star system accelerates, because the planet and star exert forces on each other. D. The center of mass of the planet-star system does not accelerate, because there is no net force exerted on the system.
The correct claims about the accelerations associated with the planet, star, and planet-star system are
A. Both the planet and the star accelerate because each object exerts a force on the other object.
D. The center of mass of the planet-star system does not accelerate, because there is no net force exerted on the system.
Thus, the correct answers are A and D.
What is the planetary system?А plаnetаry system is а set of grаvitаtionаlly bound non-stellаr objects in orbit аround а stаr or stаr system. Generаlly speаking, plаnetаry systems describe systems with one or more plаnets, аlthough such systems mаy аlso consist of bodies such аs dwаrf plаnets, аsteroids, nаturаl sаtellites, meteoroids, comets аnd plаnetesimаls аs well аs discernаble feаtures including circumstellаr disks. The Sun together with its plаnetаry system, which includes Eаrth, is known аs the Solаr System.
Grаvity is а force thаt objects exert on eаch other becаuse of their respective mаsses. Аn object dropped neаr Eаrth’s surfаce fаlls to the ground becаuse it is pulled down by the force of grаvity thаt Eаrth exerts on the object. The sаme grаvitаtionаl pull exists between Eаrth аnd the Moon, between the Moon аnd the Sun, аnd between the Sun аnd eаch object in the universe. Even pаrticles of dust аnd gаs in spаce аre аttrаcted to eаch other; in fаct, thаt аttrаction is whаt helped form the solаr system.
Your question is incomplete but most probably your full question can see in the attachment.
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A team of furniture movers wishes to load a truck using a ramp from the ground to the rear of the truck. One of the movers claims that less work would be required to load the truck if the length of the ramp were increased, reducing the angle with respect to the horizontal. Is his claim valid? Explain.
Answer:
Yes, his claim is valid
Explanation:
mechanical advantage of an inclined plane = IMA = L/h
By lengthening L, you increase the IMA.
Also, IMA = Output force / Input force
Input force is less on a "shallow" inclined plane. Work = Fd, so if F is lower, Work is lower. The height (d) doesn't change, just the length of the ramp and the angle of the ramp.
Question 20These are the predecessor building blocks for neurotransmitters.1.affinity2.synaptic vesicles3.none of these are correct4.enzyme5.precursor
The neurons typically include enzyme precursors. A chemical substance that block a neurotransmitter's activity is constantly present in neurons.
These substances are released by the postsynaptic neurons' receptor cells, which then take them in and bind them. The following techniques can be used to limit neurotransmitter activity: Excitatory, inhibitory, and modulatory neurotransmitters make up the list of neurotransmitters. The potential for action of a target cell is increased by excitatory neurotransmitters. By promoting cell relaxation, inhibitory neurotransmitters reduce the potential activity of a receptor cell. Therefore, improper glutamate neurotransmission plays a role in the emergence of epilepsy as well as cognitive and affective disorders. The inhibitory neurotransmitter serotonin (5-hydroxytryptamine, 5-HT) has been discovered to play a crucial role in mood and emotion.
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Effects of Surface Gravity, to see what someone would weigh on different planets.
If you weighed 110 pounds on Earth, you would weigh how many pounds
on Mercury.
The measure of your weight on mercury is 41.5 pounds.
What is the value of your mass?
The value of your mass is the same on both planets because mass does not change with gravity while weight changes with gravity.
The weight of an object is the measure of gravitational pull on the object.
W = 110 pounds = 489.3 N
The value of the mass is calculated as;
m = W /g
where;
g is acceleration due to gravity on earthm = ( 489.3 N ) / (9.8 m/s²)
m = 49.9 kg
The measure of your weight on mercury is calculated as follows;
W = mg
where;
g is acceleration due to gravity on mercury = 3.7 m/s²W = 49.9 x 3.7
W = 184.7 N = 41.5 pounds
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The graph shows the angular velocity 0; and angular acceleration a, versus time for a rotating body. At which of the following times is the rotation slowing down? A. t=1s B.1=2 s Cr=35 D. =4s E. 1= 5 s
A spinning body's angular acceleration and velocity are shown against time in the graph. The rotation is slackening at t=3s.
Formula for Angular Acceleration The rate at which the angular location of a spinning body changes is known as its angular velocity and is denoted by the formula: ω = θ t . ω = Angular Velocity is used here. θ = Rotated Angle. t = Duration. The angular acceleration is zero when the angular velocity is constant. If you are unable to utilize calculus, you may determine the angular velocity by looking at the area under the graph of angular acceleration over time. Angular Speed. Consider a body that is rotating about a fixed axis. The body gradually alters its angle after that.
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What is the inverse relationship between size of the wavelength frequency and energy?
The shorter the wavelengths and higher the frequency corresponds with greater energy. So the longer the wavelengths and lower the frequency results in lower energy. The energy equation is E = hν.
A wavelength's frequency and energy (E) drop as it gets longer. You may conclude from these equations that the wavelength gets shorter as the frequency rises. The wavelength lengthens as the frequency drops. The two main categories of waves are electromagnetic and mechanical. Frequency and Wavelength are mutually exclusive. The frequency and energy decrease as the wavelength increases. The frequency and energy increase with decreasing wavelength. Because the fraction decreases as the denominator increases, energy decreases as a result. As a result, the connection between energy and wavelength is inverse. These are the wavelength and energy frequency relationships.
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Answer:
Greater energy is correlated with shorter wavelengths and higher frequencies. Therefore, lower energy is produced by longer wavelengths and lower frequencies. E = hv is the energy equation.
Explanation:
As a wavelength lengthens, its frequency and energy (E) decrease. These calculations may lead you to the conclusion that as frequency increases, wavelength decreases. As the frequency decreases, the wavelength grows longer. Electromagnetic and mechanical waves fall into the two primary groups. Wavelength and Frequency cannot coexist. As the wavelength lengthens, the frequency and energy decrease. As the wavelength decreases, the frequency, and energy rise. Energy diminishes as a result of the proportion decreasing as the denominator rises. The relationship between energy and wavelength is therefore inverse. These are the correlations between energy frequency and wavelength.
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Label the parts of the cerebellum, Part A Drag the appropriate labels to their respective targets. Reser He Cerebellar cortex Posterior lobe Anterior lobe Arborvita Chord plerus Pons Fourth ventricle Medulis oblonga Folie
Pons, Fourth ventricle, Choroid plexus, Medulla oblongata, Anterior lobe, Arbor vitae, cerebellar cortex Posterior lobe, Folia are parts of brain.
Pons which is one of structure of the brain stem, which helps in the passage of pyramidal tract which is descending tract or corticospinal tract
Fourth ventricle
One of major ventricle of the brain which is filled with the cerebrospinal fluid which is formed from the choroid plexus of the ventricles, which is located near the cerebellum and pons and medulla oblanagata
Choroid plexus
A network of the blood vessels in the each ventricle here it is in the fourth ventricle major function is the production of the cerebrospinal fluid.
Medulla oblongata
one of structures in the brain stem along with Pons and midbrain, which vital centers they are : cardiac , respiratory centres which regulates their functions, labelling in the left side of the Diagram from top to bottom.
Arbor vitae
Which is cerebellar white matter Branching and appearance as tree which brings sensory and motor information to and from cerebellum cerebellar cortex
Cerebellar cortex is the portion of the cerebellum separated from the Posterior lobe by the primary fissure, helps in the mediating the unconscious proprioception
Posterior lobe
which is another lobe of the Cerebellum separated from the anterior lobe by the primary fissure helps in the fine motor coordination
Folia :
The Cerebellar cortex is deeply grooved and appears as thin transverse leaves called folia, which Increases the surface area of Cerebellum thereby increase the cell number.
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What volume of 0. 415 m silver nitrate will be required to precipitate as silver bromide all the bromide ion in 35. 0 ml of 0. 128 m calcium bromide?.
21.6ml volume of 0. 415 M silver nitrate will be required to precipitate as silver bromide all the bromide ion in 35.0ml of 0.128 M calcium bromide.
What is Molarity ?
Molarity is defined as the amount of solute (in moles)in per litre of solution. It is also known as molar concentration of a solution , It is expressed in mol/l .
M = n/V
(where n is the number of moles and V is the volume in litres.)
n = M * V
The molarity of calcium bromide is 0.128M and the volume given is 35 ml.
so, number of moles of calcium bromide is:
n = 0.128 * 35
= 4.48 millimoles
2AgNO₃(aq) + CaBr₂(aq) → 2AgBr(s) + Ca(NO₃)₂(aq)
For every 1 mole of calcium bromide, 2moles of silver nitrate is required, so for 4.48 millimoles of CaBr2, 8.96 millimoles of AgNO3 is needed.
Molarity of AgNO3 is given, 0.415 M and number of moles is 8.96 millimoles, so volume required is:
V = n/M
= 8.96/0.415
= 21.6 ml
Hence, the volume (in mL) of 0.415M silver nitrate required to precipitate as silver bromide is 21.6ml.
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Can somebody answer this
Answer:
D
Explanation:
What does N1 mean on a calculator?
Changes using the SET UP menu and indicates the notation used to show a value. On the screen, N1 is shown as "NORM1," and N2 as "NORM2." An angular unit indicator is DEG, RAD, or GRAD. BUSSY: Shows up while performing calculation.
What does the calculator's c1 stand for?Any constant that can be used in place of c1 to determine whether an answer is correct. The format ck is used to express constants, where c is any constant and k is an additional iteration of the constant that can range from 1 to 255.
What does C stand for on a calculator?Only the C and CE functions on a calculator have the potential to be a little confusing when used. A way is both buttons. The C (clear) button will clear all input to the calculator, whereas the CE (clear entry) button will clear the most recent entry.
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What is transversal class 7?
Transversal class 7 is a type of math class that focuses on developing skills related to problem solving, logical reasoning, and critical thinking. It usually covers topics such as algebra, geometry, statistics, probability, and calculus.
Transversal class 7 is a type of math class that is designed to help students develop their problem-solving, logical reasoning, and critical thinking skills. It typically focuses on several topics such as algebra, geometry, statistics, probability, and calculus. Students learn to apply the principles and concepts of these topics to solve problems. They also develop strategies for approaching difficult problems and are encouraged to think outside the box. Transversal class 7 is an important class for students to take as it can help them develop skills that they will use throughout their academic and professional lives. It also helps to prepare them for higher level math classes such as calculus and linear algebra.
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What principle is responsible for alternating light and dark bands when light passes through two or more narrow slits a refraction c diffraction B polarization D interference?
It is possible to see a distinctive pattern of brilliant and dark fringes when monochromatic light reaches a distant screen through two small apertures. By superimposing overlapping light waves coming from the two slits, this interference pattern is produced.
What principle causes bands of light and darkness to alternate as light passes through two or more objects?On the lit screen, the intensity pattern that results is determined by the superposition principle. When an integral number of wavelengths (0,, 2,...) is equal to the difference in routes from the two slits to a spot on the screen, constructive interference occurs.
What fundamental premise underlies interference?The concept of superposition, The most critical concept in interference is the superposition principle.
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only some of the people on the daytime side of earth can witness a solar eclipse when it occurs, whereas all the people on the nighttime side of earth can witness a lunar eclipse when it occurs. why is this so?
Answer:
Because the earth is much bigger than the sun
For a lunar eclipse to occur, the moon is in the shadow of the earth, (the earth is between the sun and the moon).
For a solar eclipse to occur the moon is between the earth and the sun.
The shadow of the earth will be much larger than the shadow of the moon - the lunar eclipse will be much more extensive, in size, than the solar eclipse.
identify the surface whose equation is given. rho2(sin2(φ) sin2(θ) + cos2(φ)) = 9