7. A car having an initial velocity of 12 meters per second
west slows uniformly to 2.0 meters per second west in
4.0 seconds. The acceleration of the car during this 4.0
second time interval is
(1) 2.5 m/s? west
(2) 6.0 m/s’ west
(3) 2.5 m/s? east
(4) 6.0 m/s? east
Proof: Show calculation.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

What can you increase the strength of an electromagnet by

Aloop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. a loop of wire is in a magnetic field such that its axis is parallel with the field direction. which of the following would result in an induced emf in the loop? choose all that apply. moving the loop outside of the magnetic field region. spin the loop such that its axis does not consistently line up with the magnetic field direction. change the magnitude of the magnetic field. change the diameter of the loop