Apendulum clock with a pendulum made of brass is designed to keep accurate time at 29°c. if the clock operates at 0.0°c, (a) does it run too fast or too slow, and (b) what is the magnitude of its error, in seconds per hour (use a minus sign to indicate slowing down)? the linear expansion coefficient of brass is 19 × 10-6 /c°.

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)