You would like a pendulum that swings back and forth once every 2 seconds, but the one you have swings once every 1.9 seconds. which of the following should you do to adjust it so that it has the desired period? a) remove some mass from the pendulum.
b) make the pendulum slightly shorter.
c) add more mass to the pendulum.
d) make the pendulum slightly longer.

The least penetrating form of radiation is

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .

Newtons view of arrangement of the universe