We are able to walk toward because… a) we push on the air
b) we push on the ground
c) the air pushes on us
d) the ground pushes on us

Describe the function of the endomembrane system? what organelles are involved?

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2