A speedometer of a car reads a constant 60 km per hour while negotiating a curve. Which of the following could NOT be true? A.) The car moves with a changing velocity.
B.) The car has a constant speed.
C.) The direction is constantly changing.
D.) The car undergoes acceleration.

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

When using the scientist method, which step comes last?

Aheavy boy and a lightweight girl are balanced on a massless seesaw. the boy moves backward, increasing his distance from the pivot point. what happens to the seesaw? it is impossible to predict without knowing additional information. the side the boy is sitting on will tilt downward. the side the girl is sitting on will tilt downward. nothing; the seesaw will remain balanced.