Q2.

Quantities in physics are either scalars or vectors.

(a)

Use the correct answers from the box to complete the sentence.

acceleration

direction

distance

speed

time

Velocity is

_in a given

A car cruises with constant velocity on a (low traffic) freeway at 70 mph (about 31 m/s). Wind resistance opposes the car's motion with a force of 5000 N.

At one instant in time an LR circuit has a current flowing through it of 44mA. At a time 3.3 us later the current is 22mA. The resistor is 1.0 megaohm. what is the inductance of the inductor? a) 1.1 H b) 2.5 H c) 3.1 H d) 4.8 H

Consider a 24.0 V storage battery that can transfer, over the course of its useful lifetime, a total charge equivalent to 340000 C.

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Power=170 watts time=20 seconds

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A car traveled 1025 kilometers from El Paso to Dallas in 13.5 hours. What was it's average velocity?