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Natasha2012 [34]
3 years ago
14

Answer all of these questions and you will get the brainlist

Physics
1 answer:
loris [4]3 years ago
7 0

Answer:

a is potential and b is kinetic

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25 POINTS ------------------ (usatestprep)
Airida [17]

Answer:

D) The heavier ball will have a higher temperature because the change of temperature is inversely proportional to mass.

Explanation:

As stated in the problem, the amount of heat released by each ball is

Q=mC_p \Delta T

where

m is the mass of the ball

Cp is the specific heat of iron (so, it is equal for both balls)

\Delta T is the change in temperature of each ball

In this problem, we are said that the amount of heat released by the two balls, Q, is the same. Cp is also the same: this means that the product m\Delta T must be the same for the two balls. So, the mass and the change in temperature are inversely proportional: therefore, the heavier ball will have a smaller change in temperature. And since both balls starts from the same temperature, 100 C, this means that the heavier ball will reach a higher temperature than the lighter ball.

6 0
3 years ago
Which of the following objects would have the strongest gravitational pull on a third object positioned at an equal distance fro
3241004551 [841]
I believe Box B will have a greater gravitational pull because the gravitational pull of an object depends on its mass. The more mass an object has, the greater its gravitational pull will become.

For example, we can take planets. Naturally, they are round because once upon a time there was a larger piece of rock that attracted others. But the size of the rock won't matter, it's the weight that matters. If the rock weighed nothing, the other rocks would just rebound upon contact. But if the rock weighed a lot, then things wouldn't so easily rebound and might actually stick to it.
8 0
3 years ago
Is there life on other planets ?
RUDIKE [14]
Supposedly there is life on Mars but it’s early to say for sure
7 0
3 years ago
Read 2 more answers
1. A car’s velocity increases from 4.0 m/s to 36 m/s over a 4.0 second time interval. What is its average acceleration?
Finger [1]

Explanation:

36-4/4= 9 m/squared. meter per squared.

acceleration unit is meter per second Square.equation is velocity by time.for average final(36) minus initial(4)

7 0
3 years ago
We cannot consider something to be work unless
iren [92.7K]
<span>force applied causes movement of an object in the same direction as the applied force.</span>
5 0
4 years ago
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