3 years ago

In a closed system that has 45 J of mechanical energy, the gravitational

Physics

2 answers:

Digiron [165]3 years ago

4 0

Answer:

The answer is B- it decreases from 40 J to 37 J.

Explanation:

Because as you see it was at 8 then it went down 3 just like how it started at 40 and went down 3 to 37.

arlik [135]3 years ago

3 0

Answer: The answer is D

Explanation: When potential energy decreases kinetic energy increases

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If a car travels 216 kilometers in 4 hours, calculate its speed.

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Answer:

15 m/s

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2 years ago

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If one of two interacting charges is doubled, the force between the charges will _____________.

malfutka [58]

If one of two interacting charges is doubled, the force between the charges will double.

Explanation:

The force between two charges is given by Coulomb's law

$F=\frac{k q1 q2}{r^{2}}$

K=constant= 9 x 10⁹ N m²/C²

q1= charge on first particle

q2= charge on second particle

r= distance between the two charges

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3 years ago

An object weighs 32 newtons. What is its mass if a gravitometer indicates that g = 8.25 m/s?

Elan Coil [88]

Explanation:

weight=mass×g

32=mass×8.25

mass=

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3 years ago