The bob of a simple pendulum is swinging between points X and Y.
It takes 8.6 s to swing from X to Y and back to X ten times.
What is the period of the pendulum?
A 0.43s
B 0.86s
C 4.3s
D 86s

The accelerator lab is considering using a solid-state detector as part of a high-energy experiment, converting some of the particle energy directly into an electrical current, which would be an advantage of using a solid-state detector.

Solid-state detector, also called Semiconductor Radiation Detector, is a radiation detector in which a semiconductor material such as silicon or germanium crystal forms the detection medium.

Also they converts part of the particles energy directly into electric current, this would be an advantage of using a solid-state detector.

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Answer:

To construct an electric circuit to light a bulb with maximum brightness, you will need to follow these steps:

1) Assemble the materials: Gather the two dry cells, two bulbs, and the conducting wire.

2) Connect the cells: Place the two dry cells side by side, making sure that the positive terminal of one cell is connected to the negative terminal of the other cell. This will create a series circuit.

3) Connect the bulbs: Attach one end of a length of conducting wire to the positive terminal of one of the dry cells. Connect the other end of the wire to the base of one of the bulbs. Then, attach another length of conducting wire to the base of the first bulb and connect the other end to the negative terminal of the other dry cell.

4) Test the circuit: Touch the base of the second bulb with one hand and the negative terminal of the second dry cell with the other hand. If the bulb lights up, the circuit is complete. If it does not, check the connections to make sure they are secure and that the bulbs are functioning properly.

5) Adjust the brightness: If the bulb is not as bright as you would like, you can try using a different bulb or adding additional cells to the circuit to increase the current. Be aware that adding too many cells can cause the bulb to burn out or create a hazard, so use caution when adjusting the brightness.

In order to build an electric circuit that will light a bulb as brightly as possible, you must do the following steps: Gather the components: assemble the conducting wire, two bulbs, and two dry cells.

Join the cells, and align the positive terminal of one cell with the negative terminal of the other cell by placing the two dry cells side by side.

Connect the bulbs join the positive terminal of one of the dry cells to one end of a piece of conducting wire.

Modify the brightness: If the light isn't as bright as you'd want it to be, you may try using a different bulb or expanding the circuit with more cells to boost current.

Therefore, bright as you'd want it to be, you may try using a different bulb or expanding the circuit.

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The formula of chromium oxide, which is formed when a chromium ion with a 3+ charge combines with an oxygen ion with a 2- charge be Cr₂O₃.

A chemical formula is a formula that indicates the number of atoms of one or more specific elements are present in a given chemical composition. The amount of each specific atom present in the chemical compound is indicated by the numbers that appear as subscripts on certain symbols inside the formula.

In the question, we have chemical compound named chromium oxide, which is formed when a chromium ion with a 3+ charge combines with an oxygen ion with a 2- charge. So, its chemical formula be Cr₂O₃.

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The interaction of light that distorted the image of where Bill's goggles appear to be is Refraction.

The light slows down when it passes from the less dense air into the water, this slow down of the ray of light which  causes the ray of light to change direction and then the changes the speed of the light that causes refraction.

The swimming pool appears shallow than it appear to be  because the rays of light coming from the bottom of the swimming pool that is refracted by the water making the height of the swimming pool to be above the actual swimming pool bed and there by misleading the observer(Bill).

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The International Systems of Units' standard unit measuring capacitance (C) is the rate of change of the capacitor's potential difference, which is equal to 0.75 MV/s (SI). It a substance reacts to the an electric charge.

Two electrodes that seem to be close to one another but still separated from one another make up a capacitor, a device used to store electrical energy. The parallel-plate capacitor is one simple but effective instance of this type of storage devices.

dt

dV

​

=

ϵ

0

​

A

i

d

​

d

​

=

C

i

d

​

​

=

2.0×10

−6

F

1.5A

​

=7.5×10

5

V/s

Therefore, we need to change the voltage difference across the capacitor at the rate of  7.5×10

5

V/s.

When an earthing system conductor is moved close to a conductor, its capacitance increases, which is how capacitors operate. The capacitor therefore contains two parallel plates that are spaced apart by a certain amount or gap and oriented in opposing directions.

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(a) ratio = 0.32 One the average current with in primary coil of the tranformer.

(b) The load current is 753.6 volts, and the transformer's required turn ratio is 12. The mean load current is 12.

Charge moves across a point on such a circuit at a rate known as current. When numerous coulombs of charge pass over a wire's cross section in a circuit, a large current is the result. It is not necessary to have a fast speeds to have a large current if the positive ions are tightly packed inside the wire.

Source = 240Vrms/ 60Hz

Resistor = 20 ohm

Avg. load current = voltage/ resistance * pi

= 12A times (20*3.14)

load current = 753.6 volts

ratio = Vp/Vs

ratio = 240/754

ratio = 0.32 A

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The force that gravity exerts on Rudolph is -2940 N.

Newton's second law states that the acceleration of an object depends upon two variables. They are the net force acting on the object and the mass of the object. The acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the mass of the object. This means that, if force acting upon an object is increased, the acceleration of the object also increases. If mass of an object is increased, the acceleration of that object decreases.

It is given by the formula, F = ma

where, F is the net force

m is the mass

a is the acceleration

Given that, m = 300 kg

a = -9.8 m/s²

F = ?

Substituting in the above formula, we have

F = m * a

⇒ 300 * (-9.8)

⇒ 30 * (-98)

⇒ -2940 N

Thus, the force that gravity exerts on Rudolph is -2940 N.

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The acceleration is precisely equal to the product of the acceleration due to gravity and the coefficient of kinetic friction.

The rate at which an object's velocity with respect to time changes is known as its acceleration. Accelerations are vector quantities. The direction of the net force acting on an object determines its acceleration.

The ratio of the frictional resistive force to the perpendicular force pushing the objects together is known as the coefficient of friction. The formula for the coefficient of friction is μ = F N, where F denotes the frictional force and N is the normal force.

It deals with the forces and energies involved in the motion of material bodies.

Hence, the acceleration is precisely equal to the product of the acceleration due to gravity and the coefficient of kinetic friction.

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The distance from one crest to the next or from one dip to the next may be used to calculate the wavelength.

In actuality, the distance between a wave's point and its equivalent point in the following cycle may be used to calculate a wave's wavelength.

The equation I = I sin t, where I is the current at time t and I is the maximum current, can be used to describe a sinusoidal alternating current.

For a sinusoidal alternating voltage, we may express it similarly by writing v = V sin t, where v is the voltage at time t and V is the maximum value.

The separation between peaks in a sine wave is known as the wavelength.

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The angle that will be required to bank the turn so that friction will not be required is 21.4°

A centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

Centripetal force = Mv²/r, Where r is the radius of the curvature and v is the speed.

For a turning car to be banked without friction, the angle of the curvature is given as tan(phi)= v²/rg

where (phi) is the angle.

phi = tan^-1(v²/rg)

v = 65km/h = 65×1000m/3600s= 18.06m/s

phi = tan^-1(18.06²/(85×9.8)

phi = tan^-1(0.392)

phi = 21.4°

therefore the angle required to bank the turn so that no friction will be required is 21.4°

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Hello,

I hope you and your family are doing well!

Newton's Second Law of Motion states that the force produced by an engine is equal to the mass of the rocket times its acceleration. The greater the force produced by the engine, the greater the acceleration of the rocket.

Please rate this 5 stars and brainliest if you find it helpful.

Happy Holidays!

Answer:

The tendency of a dog to bark defines entirely on the type of environment and the situation the dog looks at. Hence the correct answer is option.

No, the manual instrument grip release wrench can't be used when the system is not in a fault state. The given statement is false. Using manual instrument grip release comes under da vinci si syatem.

Faults can be of two types, recoverable faults and non recoverable faults. a recoverable fault is one that the da Vinci SI system can recover from and does not require a system restart in order to resolve the fault.

Non recoverable fault is a system fault associated with red arm LEDs and requires a system restart.

Manual instrument grip release is used in the event that normal instrument removal is not possible or when Surgeon Console control of the instrument is not practical or available.

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When you check your credit score for incorrect information, you are checking the veracity of the information.

option C is the correct answer.

Veracity is a word that describes the quality of being true, honest, or accurate.

Veracity also entails the conformity with truth or fact. It shows the validity of information or fact.

From the given question, when you check your credit score for incorrect information you are checking the veracity of such information or the conformity with truth or fact about the credit score.

Thus, we can conclude that veracity entails the truth, validity or conformity of information with proven truth.

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It is to be noted that Cynthia with her device, is most likely trying to demonstrate "Newton's second law of motion" (Option D).

Note that Cyntia is carrying out a sort of experiment that involves various items with different masses while comparing them to how fast they can travel.

Recall that Newton's Second Law of Motion (Force) indicates that the acceleration of an entity depends on the mass of the object and the amount of force applied.

Given that Cyntia's experiment is in this line, it is therefore correct to state that Cynthia, using her device, is most likely trying to demonstrate "Newton's second law of motion"

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Full Question:

Cynthia constructed a small device called a catapult shown below.

The catapult is able to accelerate objects in order to propel them in a certain direction. After placing a small toy in the end of the spoon, she pulls back with her finger on the tip of the spoon to a point and releases.

She uses toys of the same shape and size, but different masses and compares how much each travels when released. Which of the following is Cynthia most likely trying to demonstrate with her device?

A. Newton's universal law of gravitation

B. Newton's third law of motion

C. Newton's first law of motion

D. Newton's second law of motion

The projectile will take 6 seconds to return to the same level it was launched if it is launched at 50 m/s at 37 degrees from the horizontal.

Time taken by projectile to cover entire trajectory is called "Time of flight".

Suppose the initial velocity is u = [tex]v_{0[/tex] sin Ф

Let the Time of flight is T

As the projectile is reaching the same level of projection, vertical displacement is  y=0

we have, s= u t +1/2 a[tex]t^{2}[/tex]

0= [tex]v_{0[/tex] sinФT- 1/2 g[tex]T^{2}[/tex]

0= [tex]v_{0[/tex] sinФ- 1/2 gt

so, T = 2[tex]v_{0[/tex] sinФ/g

Putting values in this formula, we have

T= 2×30/10

T= 6 s

So, Time of flight is 6 seconds.

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If we ignore the moon's presence and assume that NASA wants a satellite to orbit the planet six times per day, its orbital radius is 1.44 x 10⁷.

A constructed item or spacecraft designed to circle the earth, the moon, or another celestial body. A celestial body orbiting another of greater size. An object that has been placed into orbit in space on purpose is known as a satellite or artificial satellite. Most spacecraft, with the exception of passive satellites, contain a means of generating electricity for the electronics they carry, such as solar cells or radioisotope thermoelectric generators.

As of the end of December 2021, just 4,852 of the 8,261 satellites circling the Earth were active, according to UNOOSA data, which were corroborated by the Union of Concerned Scientists (UCS), which keeps track of the functioning satellites.

There are several satellites in operation. They are used for a number of purposes, including as the weather forecasting, amateur radio, television broadcasting, and the Global Positioning System. They use telescopes to look outward at the solar system in order to conduct research and collect data.

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Answer: 0.18 m/s

Explanation:

This is a conservation of momentum problem.  Total momentum before the collision must equal the total momentum after the collision.  

Momentum = p = mv

let x = velocity of the second marble after the collision

(0.15 kg)(2.5 m/s) + (0.25 kg)(-3.0 m/s) = (0.15 kg)(-2.8 m/s) + (0.25 kg)(x)

-0.375 kg·m/s = -0.42 kg·m/s + (0.25 kg)x

(0.25 kg)x = (0.42 - 0.375) kg·m/s =  0.045 kg·m/s

x =  (0.045 kg·m/s) / (0.25 kg) = 0.18 m/s

The amount of energy lost due to friction is 735 J

The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it. We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.

Given mass of the kid is 30 kg

The length of the slide from the ground is 2.5 meters

the speed given is 1 m/s

Energy lost is PE-KE = M*g*h - 0.5M*V^2

= 30 × 10 × 2.5 - 0.5 × 30 × 1²

= 750 - 15

= 735 J

Thus the energy lost is 735 J

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A child who weighs 30 kg descends a slide that is 2.5 meters high. Friction results in an energy loss of 735 J.

A force called friction opposes the relative motion of two materials or objects. These resistive forces are brought on by elastic deformation, surface roughness, and molecule adhesion. The force that prevents one solid item from moving across another is known as friction. Friction force, kinetic friction, tumbling friction, and kinetic friction are the four main categories of friction.

It generates heat, which is useful for warming our bodies or specific areas of any object. Power is also lost as a result. It makes noise during every operation. We are able to just walk, jump, play, etc. due to friction.

Energy lost = PE-KE

= M*g*h - 0.5M*V^2

= 30 × 10 × 2.5 - 0.5 × 30 × 1²

= 750 - 15

= 735 J.

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At reach point 2, the speed V is equal to 24.9 m/s if the average friction force is equivalent to 0.15 of the its weight.

A force that opposes the rolling or sliding of three stationary surfaces over one another. Although frictional forces, such the traction required to walk without falling, may be advantageous, they can provide a significant amount of resistance to motion. the physical contact of two bodies.

The interaction of a car's tires with the road causes friction, specifically three types of friction: rolled friction, starting turbulence, and sliding friction. This friction is what allows humans to operate cars at all.

speed= 1.5m/s

The Initial speed u = 1.5m/s.

point 1 $ point 2 is (39-13) =26m

40 meters is equivalent to an altitude of(40/6) =6.7

kinematics equation v^2 =u^2 + 2as

V^2 = 1.5^2 + 2*9.8 (26 + 6.7)

V = 24.9 m/s

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The set or star-position measurements taken six months apart is most likely to reveal the highest parallax change for close stars.

The basic units of length & distance measurements inside the English system are the inch, yard, yard, and mile. Other length measurements include a rod, furlong, and chain.

The three most common fundamental units in the metric system are the meter, gram, and liter. A liter is a unit in volume equal in 3.28 meters, the meter is a length measurement equal to 3.28 feet, and the gram is just an unit of matter equal to approximately 0.0022 pounds (or about the mass of the a paper clip).

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The stars of the milky way are all near a great circle on the celestial sphere. This great circle is called milky circle.

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The stars of the milky way are all near a great circle on the celestial sphere. This great circle is called milky circle.

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Answer:

build the resilience of the society physically, socially and economically.

Explanation:

They actually build the resilience of the society , physically or socially or economically All three .

Answer:

[tex]v_c_a_n_o_e=-1.6m/s^{2}[/tex]

Explanation:

You can use the equation of the conservation of momentum. We find that the velocity of the canoe is -1.6m/s².

[tex]m_1v_1+m_2v_2=0\\(49)(1.5)+(46)(v_c_a_n_o_e)=0\\73.5 + 46v_c_a_n_o_e=0\\46v_c_a_n_o_e = -73.5\\v_c_a_n_o_e = -73.5/46 = -1.6m/s^{2} \\[/tex]

Average speed of the car be 25 meter/second.

Speed is characterized as the rate at which an object's position changes in any direction.

The distance travelled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity. SI unit of speed be meter/second.

Given parameters:

Distance travelled by the car: s = 500 m.

Time taken by the car: T = 20 second.

So, speed of the car be = distance travelled/time taken

= 500/20 meter/second

= 25 meter/second.

Hence, its average speed be 25 meter/second.

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The elastic potential energy stored is 0.9375 J.

The elastic potential energy stored in a spring can be calculated using the following formula:

Elastic potential energy = 0.5 × k × x²

where:

k is the spring constant

x is the distance the spring is compressed or stretched

In this case, the spring constant is given as 12.5 N/mm and the compression is 0.15 mm. Plugging these values into the formula, we get the following:

Elastic potential energy = 0.5 × 12.5 N/mm × (0.15 mm)²

= 0.9375 J

Therefore, the elastic potential energy stored is 0.9375 J.

The elastic potential energy stored in the abductin pad is used to open the shell when the muscles relax. The muscles close the shell by contracting, which compresses the pad. When the muscles relax, the pad expands, pushing the shell open. The energy to do this comes from the elastic potential energy that was stored in the pad when it was compressed.

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The weight of (i.e. the force of gravity on)  9 kg satellite that is at a distance 2r above the surface of the earth is calculated as 9.79 N.

In science and engineering, the weight of an object is defined as the force acting on the object due to gravity. It is a standard mechanical quantity but sometimes, it can be defined as a vector quantity, the gravitational force acting on the object.

Given m= 9kg  g = 9.8m/s²

As we  know, Weight, W = m* a

Acceleration due to gravity at height 2r; h = 2r

a =g r²/(r+ h)²

= gr²/( r+ 2r)²

= gr²/9r²

=g/9

=9.8/9

= 1.088 m/s²

W = m* a

W= 9 * 1.088

Weight = 9.79 N.

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The distance is 9.65 m.

Area of each triangular sector = 338/5

Angle subtended at center = 360° / 5 = 72°

Let, circumradius of pentagon = r

Side of pentagon = 2r sin36°

Apothem = rcos36°

Area of each sector = 1/2 (2r sin 36°)(rcos36°)

= [tex]r^{2}[/tex]/2 sin72° = 338/5

[tex]r^{2}[/tex] = 338/5 × 2/sin72° = 142.16

r = 11.9 m

Apothem = rcos36° = 9.65 m

Hence, the distance is 9.65 m.

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You must travel around the loop at a minimum speed of 7 m/s.

what is speed?

Speed is defined as the rate at which a distance changes over time. It has a distance by time dimension. The basic unit of distance with the basic unit of time are combined to form the SI unit of speed. The metric system uses metres per second as the unit of speed.

A body is being affected by FN.

Fc is the centripetal force. m = mass, v = speed, and r = radius. the "centripetal" force required to maintain the motion of a mass m object around a circle of radius r at speed v.

Fnet= Fc=Fg+FN

mv^2/r=mg

v=√(5.0)(9.8)

=7.0m/s

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