Who descover gravity and when?

Which answer accurately describes the difference between speed and velocity? Question 22 options: Speed is the result of a change in direction. Velocity is the result of a change in acceleration. Gravity affects speed.

If vx = 3 meters/second and vy = 4 meters/second, what is the magnitude of the resultant velocity?

Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of 3600 km.

The MA of a wheel and axle can be calculated by the ratio of the radius of the wheel to the radius of the axle. If an axle has a radius of 2 in and the wheel has a radius of 6 in, what is the MA of the wheel/axle?

A copper block rests 38.9 cm from the center of a steel turntable. The coefficient of static friction between the block and the surface is 0.40. The turntable starts from rest and rotates with a constant angular acceleration of 0.60 rad/s2.

I don't have it anymore since no one cared to answer

When a substance changes from one phase to another, which of the following events occurs?

Which of the following contains both protons and neutrons? a. outer shell b. nucleus c. covalent bond d. ionic bond

Density is a property of matter that relates

A main sequence star cools and expands. It must be entering which stage? A. white dwarf B. black dwarf C. red giant D. neutron star ... ?