Which of the following expressions will produce an answer with three significant figures? check all that apply. a. 2101 ÷ 23.7 b. 20 - 40.8 c. 22.67 + 14.6 d. 100 × 3.4

Adice is rolled 5 times. how many possible rolls are there? ( determine the number of outcomes using only the fundamental counting principal )

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

A0.40 kg soccer ball is kicked so that its incoming velocity of 5 m/s is changed to an outgoing velocity of -25 m/s. what impulse does the player apply to the ball?