3 years ago

True or False: We have a limited amount of fossil fuels. True. False.

Physics

1 answer:

Nina [5.8K]3 years ago

4 0

True because we have limited amount if it

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How might the velocity (speed) of wind or water affect the deposition of sediments?

Maksim231197 [3]

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4 years ago

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Nikolay [14]

That's the 'electrostatic' force.

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3 years ago

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A rocket of mass m is to be launched fromplanet X, which has a mass M and a radius R. What is the minimum speed that the rocket

Sunny_sXe [5.5K]

Answer:

The minimum speed = $\sqrt{\frac{2GM}{R} }$

Explanation:

The minimum speed that the rocket must have for it to escape into space is called its escape velocity. If the speed is not attained, the gravitational pull of the planet would pull down the rocket back to its surface. Thus the launch would not be successful.

The minimum speed can be determined by;

Escape velocity = $\sqrt{\frac{2GM}{R} }$

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If the appropriate values of the variables are substituted into the expression, the value of the minimum speed required can be determined.

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3 years ago

The collision between a hammer and a nail can be considered to be approximately elastic. estimate the kinetic energy acquired by

Setler [38]

Here we can use momentum conservation as in this type of collision there is no external force on it

$m_1v_{1i} + m_2v_{2i} = m_1 v_{1f} + m_2v_{2f}$