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Effectus [21]
3 years ago
13

NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A sled and rider wi

th a combined mass of 130 kg are at the top of a hill of height 12 m above the level ground below. The sled is given a push providing an initial kinetic energy of 1500 J at the top of the hill. Choosing a reference level at the bottom of the hill, what is the potential energy of the sled and rider at the top of the hill
Physics
1 answer:
Whitepunk [10]3 years ago
6 0

Answer:

uhuuuujujjj

Explanation:

hhhh

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Car A has twice the mass of Car B; both travel at the same speed. Compared to Car B. Car A has:
krek1111 [17]

Answer:

Car A has twice the energy of car B.

Explanation:

The kinetic energy of an object is given by :

K=\dfrac{1}{2}mv^2

Where

m is the mass

v is the speed of the object

Car A has twice the mass of Car B. Both travel at the same speed i.e.

m_A=2m_B

So,

\dfrac{K_A}{K_B}=\dfrac{(1/2)m_Av^2}{(1/2)m_Bv^2}\\\\=\dfrac{2m_B}{m_B}\\\\\dfrac{K_A}{K_B}=2\\\\K_A=2\times K_B

So, the kinetic energy of car A is twice of the kinetic energy of car B.

4 0
3 years ago
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GIVING EASY BRAINLIEST PLEASE HELP!!
AlekseyPX

Answer: I think the answer is heat flows from the lemonade to the ice

Explanation: the heat transports to the lemonade which makes the lemonade hot and the ice will melt if the drink is hot

7 0
3 years ago
What formula is needed to calculate the acceleration of object in motion?
Butoxors [25]

Answer:

Acceleration = Force/Mass

Explanation:

6 0
4 years ago
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What made the Fertile Crescent a good place for growing crops
Hunter-Best [27]

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The Fertile Crescent was good for farming because of the fertility of its land, a result of irrigation from numerous large rivers in the region.

Explanation:

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49. In what direction does the force of friction act?
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hope that helps
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