Alyssa applied 1,860.2 j of work to move a piano 4.2 meters. what amount of force did the student use? f= w/d

a) 7812.84 n b) 7440 n

c)442.9 n d)465 n

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.

Decreased sensitivity to an unchanging stimulus is known as

Boiling water is an example of physical change. true or false