Earth has a mass of 5.97 x 1024kg, and a mean radius of 6.38 x 10m. what would be the orbita
satellite in orbit 1.44 x 108 m above earth?
a. v, = 630m/s,
c. v, - 1630m/s,
t = 2.78 x 10 s
t=5.78 x 10s
b. v = 1820m/s,
d. v, - 1260m/s,
t = 6.78 x 106 s
t=5.78 x 10's
select the best answer from the choices provid

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?