What force is used to make the back-and-forth motion of a swing higher?

A.

scrape

B.

pull

C.

push

Given that the period of the Moon's orbit about the Earth is 27.32 days and the nearly constant distance between the center of the Earth and the center of the Moon is 3.84 108 m, use T2 = 4 π2 GME a3 to calculate the mass of the Earth.

What is meant by angular frequency?

How do electromagnetic waves differ from sound waves?

A bike rider (mass = 86.2 kg, with bike accelerates from rest to 3.15 m/s over 7.83 m, while exerting a 98.4 N forward force. How much force pushes back against her due to friction, etc.?

Neurons are the basis for communication in the system and throughout the body

Write the energy equivalent to 300 units of electrical energy in joules

Briefly describe why these searches suggest that star-like (our planet-like) objects and black holes cannot account for all the dark matter in the halo of our galaxy.

What two units of measurement are necessary for describing speed?

If 3,600 J of work is done in 3.0 s, what is the power? 0.00083 W 1,200 W 3,600 W 11,000 w

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min? Show Your Work.