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Furkat [3]
3 years ago
9

What is a change in the speed of an object called?

Physics
2 answers:
mina [271]3 years ago
5 0

Acceleration........................................

Tcecarenko [31]3 years ago
3 0
Acceleration ..........
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Which energy transformation occurs in the core of a nuclear reactor?
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The overall force on an object after all the forces are added together is called what
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Which class of organic molecules includes those whose main purpose is long-term energy storage?
omeli [17]

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Fats.

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6 0
3 years ago
A 515-kg roller coaster is at the bottom of a loop with a radius of 10 m. If the speed at the
Law Incorporation [45]

Answer:

20600N

Explanation:

Given parameters:

Mass of the roller coaster  = 515kg

radius  = 10m

Speed  = 20m/s

Unknown:

Force of the track pushing up on the vehicle  = ?

Solution:

The force pulling the roller coaster along the track is the centripetal force.

To find the centripetal force, use the expression below;

  F  = \frac{mv^{2} }{r}

where;

  m is the mass

  v is the speed

  r is the radius

Now insert the parameters and solve;

              F = \frac{515 x 20^{2} }{10}  = 20600N

7 0
3 years ago
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