1. walks 4 m, south
2. walks 8 m, east
3. walks 4 m, north
4. walks 8 m, west

The overall displacement of the teacher is:

An arrangement of three-point masses: 

m_A=2 kg, located at coordinate (5, 5)

m_B=3 kg, located at coordinate (35, 10)

m_C=4 kg, located at coordinate (10, 40)

An object moves in uniform circular motion, and the centripetal force on

the object is 4.0 N. If the mass of the object decreases by a factor of

2, what will be the centripetal force on the object?

A pack of three

wolves are fighting over the carcass of a dead moose. A top view of the

magnitude and direction of the three forces is shown in the diagram to the

right.

V1=12V, R1=1kΩ and R2=330Ω.

The battery current I  in

the circuit is 

A ball is thrown horizontally from the top of a 15.0 m high cliff with an initial speed of v₀= 6.0 m/s. How far horizontally (x) from the base of the cliff does the ball land?

A

certain x-ray tube operates at a current of 6.00 mA and a potential difference

of 75.0 kV. What is its power in watts?

A motorboat traveling 6 m/s, East encounters a current traveling 3.8 m/s, South.

A merry-go-round is initially at rest. On applying a constant torque,

it rotates through 300 rad in

15 s. What is the angular

acceleration?

A dancer with mass 67 kg, sliding into a pose, is retarded by a

frictional force of magnitude 450 N.

What

is the coefficient of kinetic friction