Early test flights for the space shuttle used a "glider" (mass of 970 kg including pilot). After a horizontal launch at 500 km/h at a height of 3500 m , the glider eventually landed at a speed of 210 km/h .

Protons and neutrons are found within the nucleus of an atom

Each neuron shown in this figure innervates a group of muscle fibers. what is the term for a group of muscle fibers innervated by a single neuron?

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .