The north pole of one bar magnet is near the south pole of another bar
magnet. What happens to the magnets?
O A. They repel each other.
B. They attract each other.
C. They twist away from each other.
O D. They neither attract nor repel each other.

Answer:

Global climate is determined depending on the amount of energy given from the sun to the certain area.

Example:

When it is Summer, (June, July) the Northern Hemisphere receives the most light and heat because it is tilted toward the sun.

Answer:its b

Explanation:

Answer:

Concept: Physics

Answer:

1: d

2:b

3:b

4:a

5c

second page

1:a

2:c

3:d

4:c

5:d

text me for the rest of the answers or comment on this

Answer:

When Zoe weighs the ingredients (sugar and baking soda), it weighs 25 grams in total. When she weighs the “snake” it weighs 23 grams. This is because some carbon dioxide gas produced during the chemical reaction escapes into the air.

Answer:

How does the speaker know that the lump of metal she is holding is an asteroid?  

The patterns formed inside the metal She explains that the rock is older the earth and that it is an asteroid due to the patterns formed inside it that show it contains metallic crystals that cannot be formed on earth but in space where temperatures mean that molten metal takes billions of years to cool.  

How does the speaker “hunt” asteroids? Describe how teams of scientists collect data about asteroids.  

The speaker works with astroids she attempts to search for them for scientific use. She analyzes how long ago these rocks were coming acrost the earth. How many are in the universe.  

Both speakers describe the asteroid that hit Earth and caused a massive extinction, including the decimation of the dinosaurs. The speakers describe the size of this asteroid in different terms. Summarize each speaker’s description and explain which one gives you a better picture of the size of this asteroid.  

Debris from the impact orbiting around the Earth shielded sunlight, halting photosynthesis.  

The impact was so extreme that life at ground zero was vaporized.  

tsunamis, landslides, earthquakes, and heat caused by the impact killed organisms near the site of impact.  

Does Carrie Nugent agree with Phil Plait’s assessment that we can defend the Earth from asteroids? Why or why not?  

It seems as if she does agree. I believe she has strong intentions to defend the earth and to prevent there to be any more extinction for any more animals I believe she cares to explore and recover so if she could find a way to use the asteroids to her advantage she would.

Explanation:

6. How does the speaker know that the lump of metal she is holding is an asteroid?

- The speaker knows that the lump of metal she is holding is an asteroid because the patterns formed inside the metal. She explains that the rock is older than the earth and that it is an asteroid. This is due to the patterns formed inside it. These patterns show that it contains metallic crystals that cannot be formed on earth, but instead in space where temperatures mean that molten metal takes billions of years to cool.  The scientists also use representative sampling. This is done when they deal with such large quantities of objects for estimating.

7. How does the speaker “hunt” asteroids? Describe how teams of scientists collect data about asteroids.

- The speaker “hunts” for asteroids by attempting to search for them for scientific use. She analyzes how long ago these rocks were coming across the earth and how many are in the universe.  She also is classifying them by color and shape. Some of the objects can be classified into one or more categories and this could lead to disagreements on where they should or should not be listed. Also, the objects can be difficult to see properly.

8. Both speakers describe the asteroid that hit Earth and caused a massive extinction, including the decimation of the dinosaurs. The speakers describe the size of this asteroid in different terms. Summarize each speaker’s description and explain which one gives you a better picture of the size of this asteroid.

- The asteroid hit at high velocity and effectively vaporized. It made a huge crater, so in the immediate area there was total devastation. A huge blast wave and heatwave went out and it threw vast amounts of material up into the atmosphere. 'It sent soot travelling all around the world.

9. Does Carrie Nugent agree with Phil Plait’s assessment that we can defend the Earth from asteroids? Why or why not?

- I would say that it seems to me as though she does agree. I believe she has strong intentions to defend the earth and to prevent any more extinctions for any more animals. I believe she cares to explore and recover in order to hopefully help find a way to use asteroids to her advantage. On top of that, the object shown is an Irregular galaxy. This can be determined by the fact it has an irregular shape.

Answer:

A. Their shape

Explanation:

The name clearly shows that the shape of these canals are semi-circular. The semi-circular canals consist of three tubes filled with fluid and located in the inner ear. They help to maintain balance and transmit impulses through the movement of the fluids. The impulses sent through these fluids are sent to the brain for interpretation.

The function of the canals are not indicated by the name, rather the shape is hinted through the name.

Answer:

because switch moves after a waiter

Explanation:

Answer:

y = 20 [m]

Explanation:

To solve this type of problem we must use the following equation of kinematics.

[tex]v_{f}^{2} =v_{o}^{2}-2*g*y[/tex]

where:

Vf = final velocity = 0

Vo = initial velocity = 20 [m/s]

g = gravity acceleration = 10 [m/s²]

y = elevation [m]

Now the key to solving this problem is to know that when the stone reaches the maximum height its speed is zero. Therefore the final velocity term is zero.

[tex]0 = (20)^{2}-2*10*y\\20*y=400\\y=20 [m][/tex]

Another important fact is that the sign of gravitational acceleration was taken as negative, since it acts in the opposite direction to the movement of the stone.

First, let's find the resultant, and applicate 2nd law of Newton using the resultant, so:

R = ma

F - Ff = ma

Data:

F = Force = 1150 N

Ff = Friction force = 490 N

m = Mass = 150 kg

a = Aceleraction = ?

Replacing according our data:

1150 N - 490 N = 150 kg * a

660 N = 150 kg * a

660 N / 150 kg = a

a = 4,4 m/s²   ← Aceleration of the object

The normal force IS NOT the resultant force, the normal force's the force between the ground and the object, in another words, is the weight of the object, and for the weight:

w = mg

w = 150 kg * 10 m/s²

w = 1500 N   ← Normal force between object and ground.

Answer:

Check the diagram from the photo

Explanation:

Answer: F = 106.72 N

Explanation: Newton's Law of Universal Gravitation states that two masses attract each other by a force pointing in a straight line to the center-of-mass of both masses.

It is directly proportional to the masses and inversely proportional to the square of their distance, represented as:

[tex]F=G\frac{m_{1}m_{2}}{r^{2}}[/tex]

where

G is gravitational constant whose value is 6.67x10⁻¹¹ N(m/kg)²

m are masses in kg

r is distance in m

The force between the moon and a person with mass of 66kg is:

[tex]F=6.67.10^{-11}\frac{66(7.34.10^{22})}{(1.74.10^{6})^{2}}[/tex]

[tex]F=\frac{3231.215.10^{11}}{3.0276.10^{12}}[/tex]

F = 106.72 N

The force between a person with mass of 66kg and the moon is 106.72 N.

The strength of the force between person and the moon is equal to 106.6 Newton.

Given the following data:

Scientific data:

To determine the strength of the force between person and the moon, we would apply Newton's Law of Universal Gravitation:

Newton's Law of Universal Gravitation states that the force of attraction (gravitational force) acting between planet Earth and all physical objects is directly proportional to the mass of planet Earth, directly proportional to the mass of the physical object and inversely proportional to the square of the distance separating the Earth's center and that of the physical object.

Mathematically, Newton's Law of Universal Gravitation is given by the formula:

[tex]F = G\frac{M_1M_2}{r^2}[/tex]

Where:

Substituting the given parameters into the formula, we have;

[tex]F = 6.67\times 10^{-11} \frac{(7.34 \times 10^{22} \times 66)}{(1.74 \times 10^{6})^2}\\\\F = 6.67\times 10^{-11} \frac{(4.84 \times 10^{24}) }{3.03 \times 10^{12}}\\\\F = \frac{3.23 \times 10^{14} }{3.03 \times 10^{12}}[/tex]

Force, F = 106.6 Newton.

Read more on gravitational force here: https://brainly.com/question/21511416

Answer:

b. Continental-oceanic

Explanation:

The Earth's crust has been divided into a series of plates. These plates move at a different rate or speed in different directions.

These plates are divided by the boundary between them which are of three types: convergent, transform and divergent.

The convergent boundaries are the one which moves toward each other and the based on the crust they are of three types: continent-continent, ocean-ocean and ocean-continent.

In ocean-continent boundaries, the oceanic plate is denser compared to the continental plate is lighter as a result of which during the process of subduction the oceanic plate sinks beneath the continental plate towards the mantle and melts.

Thus, Option-B is the correct answer.

Answer:

Im not sure, are there options for it?

Explanation:

Answer:

it loses its momentum. In simpler ways it is really slow

Explanation:

Answer:

30N and 1 kg has largest acceleration

Answer:

The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

Explanation:

Answer: The law of reflection states that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.

Answer:

The answer to this question is given below in this explanation section.

Explanation:

            "What element has conductivity,shiney luster,magnetic

-science"

silicon has a shiny luster,But it is brittle and conducts electricity poorly.Some metalloids change their characteristics when they react with different elements.Luster conductivity and malleability are physical properties can be observed be observed without attempting to change the identity of the substance.The term physical property is an observable characteristics of a substance. in this case the luster conductivity and malleability of metals are the properties, which can be observed  by our senses.It differs from chemical properties which can only be observed when the substance change its chemical identity.

Metal are solid at room temperature with the exception of mercury which is liquid at room temperature.Luster metal have the quality of reflection light from its surface and can be polished e.g gold,silver and copper.

Answer:wind

Explanation:

The natural resource that is renewable is wind. Explanation on wind as a renewable resource can be found below.

Renewable resources are those resources that is replenished or replaced by natural processes at a rate comparable to its rate of consumption by humans or other users.

Renewable resources cannot be exhausted as a result of use, unlike, their non-renewable counterparts.

Examples of renewable natural resources are as follows:

Therefore, the natural resource that is renewable is wind.

Learn more about renewable resource at: https://brainly.com/question/19604560

Explanation:

[tex]{\bold{\sf{\underline{Understanding \: the \: concept}}}}[/tex]

✠ This question says that there is an object and its mass is 2 kg ; it's raised to a height 10 m and possess potential energy of 200 J. Now this question ask us to find the kinetic energy and the potential energy at a height 4 metre.

[tex]\bold{↬{ }}[/tex][tex]{\bold{\sf{\underline{Given \: that}}}}[/tex]

✰ Mass = 2 kilograms

✰ Raised height = 10 metres

✰ Posses potential energy = 200 Joules

[tex]\bold{↬{ }}[/tex][tex]{\bold{\sf{\underline{To \: find}}}}[/tex]

✰ Kinetic energy at a height 4 metre

✰ Potential energy at a height 4 metre

[tex]{\bold{\sf{\underline{Solution}}}}[/tex]

✰ Kinetic energy at a height 4 metre = 120 J

✰ Potential energy at a height 4 metre = 80 J

[tex]{\bold{\sf{\underline{Using \: concepts}}}}[/tex]

✰ Potential energy formula.

[tex]{\bold{\sf{\underline{Using \: formula}}}}[/tex]

✰ Potential energy = mgh

[tex]{\bold{\sf{\underline{We \: also \: write \: these \: as}}}}[/tex]

✰ Potential energy as P.E

✰ Mass as m

✰ Joules as J

✰ Height as h

✰ Raised height as g

[tex]{\bold{\sf{\underline{Full \: solution}}}}[/tex]

↦ Potential energy = mgh

↦ Potential energy = 2 × 10 × 4

↦ Potential energy = 20 × 4

↦ Potential energy = 80 J

↦ Kinetic energy = Posses potential energy - Finded potential energy

↦ Kinetic energy = 200 J - 80 J

↦ Kinetic energy = 120 Joules

An object of mass 2kg raised to a height 10m possess potential energy of 200J.

What is the kinetic energy and potential energy at a height 4 metre?

from energy conservation,

potential energy at 10m height =potential energy +kinetic energy at 4 m

potential energy at 10 m height=200

let,Kinetic energy at 4m=KE

potential energy at 4m=PE

so,

potential energy at 4m height =

Hence,

kinetic energy at 4m is =200-80=120J

Answer:

56N

Explanation:

Given parameters:

Distance  = 40m

Work done  = 2240J

Unknown:

Force exerted  = ?

Solution:

The work done on a body is the force applied to move a body through a certain distance.

           Work done  = Force x distance

 Now insert the parameters and solve for the force

          2240  = Force x 40

           Force  = 56N

Answer:

The new force of attraction would be 36 units

Explanation:

Law of Universal Gravitation

Objects attract each other with a force that is proportional to their masses and inversely proportional to the square of the distance.  

This statement can be expressed with the formula:

[tex]\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}}[/tex]

Where:

m1 = mass of object 1

m2 = mass of object 2

r     = distance between the objects' center of masses

G   = gravitational constant: [tex]6.67\cdot 10^{-11}~Nw*m^2/Kg^2[/tex]

Now suppose two given objects attract with a force of F=16 units, thus:

[tex]\displaystyle G{\frac {m_{1}m_{2}}{r^{2}}}=16[/tex]

And now the masses of both objects is tripled, i.e., m1'=3m1, m2'=3m2, and the distance between them is doubled, r'=2r. The new force is:

[tex]\displaystyle F'=G{\frac {3m_{1}3m_{2}}{(2r)^{2}}}[/tex]

Operating:

[tex]\displaystyle F'=G{\frac {9m_{1}m_{2}}{4r^{2}}}[/tex]

[tex]\displaystyle F'=\frac{9}{4}G{\frac {m_{1}m_{2}}{r^{2}}}[/tex]

Substituting the value of the initial force:

[tex]\displaystyle F'=\frac{9}{4}\cdot 16[/tex]

[tex]F'=36\ units[/tex]

The new force of attraction would be 36 units

Answer:

Its 150?

Explanation:

5³= 5×5×5

I hope its help :)

Answer:

dichotomous key

Explanation:

because it is

Answer:

"A blackbody is an object that absorbs all of the radiation that it receives(that is,it does not reflect any light,nor does it allow any light to pass through it and out the other side).The energy that the blackbody absorbs heats it up,and then it will emit its own radiation."

Explanation:

Risk*

Answer:

two governmental: u.s department of agriculture, U.s department of energy

four non-governmental: Greenpeace, Center for environmental research and conversation, earth Island Institute, earth justice

Explanation:

I really hope these help and that I answered correctly

Answer:

they have same acceleration 2m/s^2

Explanation:

a =v-u/t

65-60/2.5

2m/s^2

a) The acceleration of the car and the bicycle are equal since [tex]\delta V[/tex] for both vehicle is 5km/h and the time taken for both vehicle is also the same 2.5s.

b) The acceleration of the bicycle is 0.556m/s²

Given the data in the question;

Since the bicycle starts from rest

a)

The acceleration of the car and the bicycle are equal since [tex]\delta V[/tex] for both vehicle is 5km/h time taken for both vehicle is also the same 2.5s.

b)

The acceleration of each vehicle

To determine the acceleration for car and the bicycle, we use the first equation of motion:

[tex]v = u + at[/tex]

Where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time.

Now, For the car;

[tex]18.0556m/s = 16.667m/s + ( a + 2.5s )\\\\a = \frac{18.0556m/s - 16.667m/s }{2.5} \\\\a = \frac{1.3886m/s}{2.5s} \\\\a = 0.556 m/s^2[/tex]

Hence, the acceleration of the car is 0.556m/s²

For the bicycle;

[tex]1.38889m/s = 0 + ( a * 2.5s )\\\\a = \frac{1.38889m/s}{2.5s}\\\\a = 0.556m/s[/tex]

Hence, the acceleration of the bicycle is 0.556m/s²

Learn more: https://brainly.com/question/19131245

What is the “price” that you pay for using less force? The price that you pay for using less force is having to do more work.

.....................................

dont ask this is what i looked up and found

The "price" that you pay for using less force is:

Force is defined as the energy which is required to move or change the velocity of an object.

There are different types of force which includes:

As a result of this, if there is less force exerted on an object, then the "price" which would be paid for this is that the object would not move.

Read more here:

https://brainly.com/question/24557735

The circuit shows three resistors connected in series is the letter B because he elements are connected on the same wire and there is only one path for the electric current to flow.

The main difference between series and parallel circuit is the way voltage and current are presented. The voltage will be the same at all points in the parallel circuit and the current will vary. In series circuit, it is the voltage that can be different, while the electric current is the same.

In a series electric circuit, the elements are connected on the same wire and there is only one path for the electric current to flow. For this reason, the electric current is the same in all elements of the circuit.

See more about series eletric circuit at brainly.com/question/11853598

Answer:

V=u + at

V= final velocity

U= Initial velocity

a= acceleration

t= time taken

V= 5 + 30*2

V=5+60

V=65m/s

Explanation: