Tommy was walking at a rate of 4 miles/hour at noon and at 12: 30 pm he was walking at a brisk rate of 6 miles/hour. two hours later tommy was walking at a leisurely rate of 2 miles/hour. which statement about tommy's accleration is true?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon

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?