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Lapatulllka [165]
3 years ago
7

A 48 kg cart is sitting motionless at the top of the hill. At what height, did the cart start at, to reach 88435 J of energy at

the end of the ride? Group of answer choices 19 meters 456 meters 188 meters 0.19 meters
Physics
1 answer:
svet-max [94.6K]3 years ago
7 0

Answer : The height is 188 meters  

Explanation :   When the cart reached at the end from top of hill then the cart have potential energy .

Given that,

Potential energy = 88435 J

Mass of cart = 48 kg

We know that,

The potential energy is

mgh =88435

h= \dfrac{88435}{48\times9.8}

h = 187.9 = 188\ meters

So, the height of the top is 188 meters.

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\omega_f = 585.37 \ rev/s

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The heat capacity of object B is twice that of object A. Initially A is at 300 K and B at 450 K. They are placed in thermal cont
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The final temperature of both objects is 400 K

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The final temperature of the two objects is given by

T_2 = \frac{C_aT_a + C_bT_b}{C_a + C_b}

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Therefore, the final temperature of both objects is 400 K.

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