Which of the following best describes what causes the pases of the moon.?
the earth casts a shadow on the moon
the moon gets in between the sun and the earth
the earths tilt on its axis
as the moon revolves around the sun, the part of the moon that we can see on earth changes

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.