Adam applies an input force to the pulley as he pulls down to lift the object. as he does this, adam wonders about how the pulley is him. how is the pulley adam lift the object?
a. all of these answers are correct.
b. a fixed pulley lowers the amount of force needed to do the same amount of work.
c. a fixed pulley increases the distance over which the force is applied.
d. a fixed pulley adam change the direction of the effort force.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

second mirror gathers light from a faraway object and reflects it to another mirror. - a.