Chromatic aberration a) makes images of stars appear sideways b) weakens the images of stars c) makes stars appear much larger than they are d) blocks stars from most telescopes

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity