What happens to the average kinetic energy of a substance as its temperature increases?

A. It decreases, then increases.

B. It remains the same.

C. It increases.

D. It decreases.

Answer:

Explanation:

The average speed of the car can be found by using the formula

[tex]s = \frac{d}{t} \\ [/tex]

d is the distance

t is the time taken

From the question we have

[tex]s = \frac{300}{6} = 50 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

50mph

Explanation:

Just do[tex]\frac{300}{6}[/tex] (aka 300 divided by 6)

And you'll get 50 as your answer!

Hope this helps! Ty!

Answer:

1) False

2) True

3) 36N

Explanation:

1) Quantitative observation is related to number of objects . But in that example , there isn't any number.

2) Potential energy depends on height. So potential energy increases when height increases.

3) F = m×a

In the question , m = 18 kg ; a = 2m/s^2

So, F = 18×2 = 36N

Answer: Electrical energy

Explanation:

A power plant is considering an industrial facility that has the ability to generate electricity from its primary energy.

There could be used one or more generator when it comes to power plants and their function is to convert mechanical energy into electrical energy in order to supply power to the electrical grid for other people that are needing electricity and more.

Answer:

461.88 N  

Explanation:

Let tension in each vine be T .

The vertical component of this tension of both the vine will add up and balance the weight .

2T cos 30 = mg

2 T x cos 30 = 800

T  = 800 / (2 x cos30 )

= 461.88 N  

Answer:

hi

Explanation:

Acceleration due to gravity depends directly on the mass of Earth and inversely to the square of radius of Earth.

Answer:

9.8 m/s2

Explanation:

Acceleration due to gravity is the acceleration gained by an object due to the gravitational force. Its SI unit is m/s 2. It has both magnitude and direction, hence, it’s a vector quantity. Acceleration due to gravity is represented by g. The standard value of g on the surface of the earth at sea level is 9.8 m/s2.

Answer:

Explanation:

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According to Vocal Media,

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Deforestation is the permanent destruction of forests in order to utilize the land or trees. Typically, deforestation is clearing a lot of trees without the intention of establishing future growth. Harvesting, forest fires, and insect infestations do not count as deforestation because the affected areas will eventually grow back.

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Hope this helps! <3

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Answer:

idgaf

Explanation:

lol

Answer:

Robbie's displacement is zero.

Explanation:

Displacement is called the change in position that a body experiences, from an initial point A, to an end point B, through movement. That is, displacement is understood as the length and direction that a body travels to move from an initial point to an end point. Displacement is a vector type quantity, which is described from the magnitude and the direction.

Only the start point and the end point are important for displacement. When the object ends at the same starting point, the displacement will be zero.

You know that Robbie leaves his house and drives 5 miles North to the post office, 8 miles East to the park, 5 miles South to the grocery store, and then 8 miles West to get back home.

Since in this case the start point and end point is Robbie's house, then the offset will be zero.

Answer:

A.

Explanation:

B,C,D is not right because those do not pay a factor on kinectic energy

Answer:

49000J

Explanation:

Given parameters:

Height  = 25m

Mass  = 200kg

Unknown:

Kinetic energy of the cart at the bottom of the hill  = ?

Solution:

The kinetic energy of the roller coaster at the bottom of the hill will be at its maximum and the potential energy is 0.

All the potential energy would have been converted to kinetic energy in essence.

So find the potential energy first;

     Potential energy  = mgh

m is the mass

g is the acceleration due to gravity

h is the height

      Potential energy  = 200 x 9.8 x 25  = 49000J

So the kinetic energy at the bottom of the hill is 49000J

Answer:

... As has been previously discussed, heat is not something that is contained in an object.

Explanation:

Answer:

The one you have selected

Explanation:

That is right

Answer:

For the first one c is the answer

For the second one c is also the answer

For the third one is b

Explanation:

I took that

Answer:

B. 44.1

Explanation:

We can use the equation y=1/2gt^2 to find the distance in the vertical direction, where y= distance in the vertical direction, g=acceleration due to gravity, and t=time

we only know acceleration due to gravity(9.8m/s^2),

plug in known variables,

y=1/2*9.8*t^2

we still need to plug in the time variable.

In order to do that, we an use the s=d/t equation and re arrange that formula to get: t=d/s, where t=time, d=distance, and s=speed.

plug in known variables,

t=60/20

t=3

now that we know the time, we can plug that into our original equation

y=1/2*9.8*3^2

simplify,

y=4.9*3^2

y=4.9*9

y=44.1m

Thus, B is your answer

Answer:

Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the chloroplasts of plants. There are various types of chlorophyll structures, but plants contain chlorophyll a and b. These two types of chlorophyll differ only slightly, in the composition of a single side chain.

Explanation:

Hope that helps.

Answer:

I think the answer might be the first one

Answer:

Explanation:

According to newton's second law:

Force = mass * acceleration

Given

Mass = 873kg

acceleration = 44.66m/s²

Magnitude of the force is expressed as;

F = ma

F = 873 * 44.6

F = 38,673.9N

Hence the magnitude of the net force exerted on the dragster during this time is 38,673.9N

Answer:

3 m/s

Explanation:

have a good day

Answer:

As the roller coaster goes higher, more potential energy is increased in the roller coaster. Caused by gravity and the roller coaster's position, the potential energy is stored in the roller coaster. For example, this ball is at the top of a hill, where potential energy is at it's highest. Potential energy can be calculated by Potential Energy=Mass X Acceleration X Height.

Explanation:

The factor that impact the amount of potential and kinetic energy should be explained below.

Since the roller coaster should be high which there should be more potential energy and the same should be increased.

Due to the gravity and the position of the roller coaster the potential energy should be stored in the rolar coaster.

Just like when the ball is in the top of the hill when there is high potential energy so in this way it should be impacted.

learn more about energy here: https://brainly.com/question/12052751

Explanation:

D = 30+90+30

= 150m

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

what's the question

Answer:

4 secs

Explanation:

I am right trust me

Answer:

gravity

Explanation:

hshshsjshdhdhdhshsjs

Answer:

10N

Explanation:

Answer:

In physics, the kinetic energy (KE) of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Having gained this energy during its acceleration, the body maintains this kinetic energy unless its speed changes. The same amount of work is done by the body when decelerating from its current speed to a state of rest.

Explanation:

And Something Else To Hopefully Make Your Day Better:

Answer:

photosynthesis

Explanation:

I just took the midterm and got it correct :))

PLZ MAKE BRAINLIEST, thank youuu <3

Answer:

B

Explanation:

in comparison, the sun is a soccer ball, and the earth is a head of a needle, and the moon is a speck of salt