Question 2 a)

A disk is 9.0 cm in diameter. There is a reference dot on

the edge of the disk initially located at

Question 2 b)

What is the angular acceleration of the reference

dot over the first 0.6 s? Give your answer to 1 decimal place in rad/s

Question 1 b)

Giovanni

decides to turn around by 180° but continues to

push with the same magnitude of force as before. What is the net torque on the

merry-go-round now?

Question 1 a)

Suzanne and Giovanni are pushing a merry-go-round with a

diameter of 5 metres. They push in the directions shown in the figure below:

a)    

If Suzanne pushes with a force of 41.5 N and Giovanni

pushes with a force of 35.0 N, what is the net torque on the merry-go-round? Take the anticlockwise direction as positive. Give

your answer to 2 decimal places in Newton. Write your answer without units i.e.,

12.61 N as 12.61.

Question 3d)

The voltmeter is removed and an ammeter placed into position. Which diagram (or diagrams) shows the correct configuration of the circuit for the ammeter to function correctly?

Which diagram below shows the correct configuration of the circuit such that the voltmeter measures the potential difference across the resistor?

Question 3a)

A voltmeter is (incorrectly) inserted into a circuit as shown in the circuit diagram below.

What is the current in the circuit?

Give

your answer to 0 decimal places in A. Write your answer without units

i.e., 12 A as 12.

Question 3b)

A voltmeter is (incorrectly) inserted into a circuit as shown in the circuit diagram below.

What does the voltmeter read?

Question 1 e)

Two

insulating handles are now used to pull the (10.0 cm diameter)

electrodes away from each other until they are 1.0 cm apart. The

electrodes remain connected to the 15 V battery during this process.

What is the electric field strength inside the capacitor?

Give

your answer to 1 decimal place in kv/m. Write your answer without units

i.e., 12.6 kV/m as 12.6.

Question 1 f)

Two

insulating handles are now used to pull the (10.0 cm diameter)

electrodes away from each other until they are 1.0 cm apart. The

electrodes remain connected to the 15 V battery during this process.

What is the potential difference between the electrodes?

Give

your answer to 0 decimal places in V. Write your answer without units

i.e., 12 V as 12.