41. Why would it be a poor idea to have the back of your hand up against the outfield wall when

you catch a long fly ball?

A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration? A.-13 m/s2 B.-6 m/s2 C. 6 m/s2 D. 13 m/s2

What is the acceleration of an object moving at a constant speed?

An air conditioner of 2kW is used in an electric circuit having a fuse of 10A rating. If the potential difference of the supply is 220 V, will the fuse be able to withstand, when the air conditioner is switched on? Justify your answer.

If an astronaut takes an object to the moon the following is true (choose only one). A the mass will change but the weight will be the same. B both the mass and the weight of the object will be the same.

What is the frequency of a simple pendulum 2.7 m long in the following situations? (a) in a room that is stationary Hz (b) in an elevator accelerating upward at a rate of 1.1 m/s2 Hz (c) in free fall Hz

How many (whole number of) 77 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton? A metric ton is 1.000 * 103 kg. Answer in units of people

Balanced forces do not change the motion of an object

Maritime climates can be expected in the middle of large continents. True False

Why do scientists think that our solar system must have formed sometime after nearby supernovae explosions?

A professor sits on a rotating stool that is spinning at 10.0 rpm while she holds a heavy weight in each of her hands. Her outstretched hands are 0.785 m from the axis of rotation, which passes through her head into the center of the stool.