One day, five- year old barbara was running down the street. As she opened the gate to her friends yard, a big dog jumped out and bite her. She was terribly startled and cried out in pain. She now cries whenever she sees any dog

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.

Which statements did both aristotle and ptolemy assume? check all that apply.