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fiasKO [112]
3 years ago
9

A roller coaster is at the top of a 72 m hill and weighs 134 kg. The coaster (at this moment) has____________ energy. Calculate

it.
A. Kinetic Energy and 347,328J
B. Kinetic Energy and 9,648J
C. Potential Energy and 9,648J
D. Potential Energy and 94,550.4J
Mathematics
1 answer:
Inga [223]3 years ago
5 0

Answer:C

Step-by-step explenation: m=134kg,h=72m,g=10m/s

PE=mgh

PE=(134kg)(10m/s^2)(72m)

PE=964800J

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Q8
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Answer:

Ethan

Question b is incomplete

Step-by-step explanation:

Given the masses of the 6 insects below :

Name of Insect ______ Mass (m)

Arthur _____________ 7.8259

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8.945 > 8.55 ;

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(b) Write the name of the stick insect with m s 7.155 g

Question b isn't complete

7 0
3 years ago
X(1+3)= x +3x is an example of which algebraic property?
Dmitry_Shevchenko [17]

Answer:

I think the answer is C.

4 0
3 years ago
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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B6a%7D%7B%20%20-%201%7D%20%20%5Ctimes%20%5Cfrac%7B7%7D%7B%20-%209a%20%7B%7D%5E%7B2
lesya692 [45]

Answer:

14/3a²

Step-by-step explanation:

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14a / 3a³

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