Why is the earth sphered but we cant fall off

If we know the KE in a system is 65J, and we know the PE is 10J. What is the ME?

Which of the following statements are true concerning electromagnetic waves in a vacuum? Check all that apply Electromagnetic waves travel in a vacuum with a definite and unchanging speed.

A force f = bx 3 acts in the x direction, where the value of b is 3.7 n/m3. how much work is done by this force in moving an object from x = 0.00 m to x = 2.7 m?

Use your knowledge of the state of matter and the other physical properties of matter to write an explanation for what may have caused the following situation: Although it hasn't rained in a week, every morning the grass and the car windows are wet.

At what temperature does liquid water change into a gas

What describes the movement of a fluid during convection?

Inductors in parallel. Two inductors L1 = 1.31 H and L2 = 2.24 H are connected in parallel and separated by a large distance so that the magnetic field of one cannot affect the other. (a) Calculate the equivalent inductance.

The amplitude of an oscillator decreases to 36.7% of its initial value in 29.5 s. part a what is the value of the time constant

Which is a derived unit? A Meter B Second C Kilogram D Newton

What is the period of vibration for a wave with a frequency of 150 hertz?