A 3200kg pick-up truck has a velocity of 30m/s. What is the truck's momentum?
What is 96,000
100
Calculate the current of a resistor with a resistance of 7.0 when connected to a 12V battery.
What is 1.714A
100
A charge can move through a magnetic field and not experience a force by:
A. traveling perpendicular to B
B. moving quickly
C. traveling parallel to B
D. moving slowly
What is C.
100
A metal sphere is grounded through a switch and a positively charged balloon is brought near it. The balloon is taken away and the switch is opened. The sphere is now...
A. None of these
B. Positively charged
C. Negatively charged
D. Neutral
What is D
200
Why doesn't the principle of mechanical energy conservation hold when frictional forces are present?
What is Kinetic Energy is not completely converted to a form of potential energy
200
What is momentum and its basic equation?
What is mass in motion. P=mv
200
A computer is connected across a 112V power supply. The computer dissipates 150W of power in the form of electromagnetic radiation and heat. Calculate the computer's resistance.
What is 83.64
200
What kind of field surrounds a stationary electric charge and moving charge?
What is Electric; Electric and Magnetic
200
Supposed we have 5 identical conducting spheres and one of them carries a charge of Q. If they are all brought into contact and then separated...
A. Only one will be charged with Q
B. They will each have a charge of Q/2.5
C. They will all be discharged
D. They will each have a charge of Q/5
What is D
300
What is the potential energy of an 8kg mass 2m above the ground?
What is 156.8 J
300
An 8kg bowling ball traveling east at 14m/s hits head on with a 5kg ball headed west at 20m/s. After the collision, the 8kg ball is headed west at 14m/s. What is the other ball's velocity after the collision?
What is 22m/s
300
If 5 resistors in a circuit are parallel, what is the same for each of the resistors in the circuit?
What is voltage
300
A proton moves at a speed of 3.2e6 m/s perpendicular to a constant magnetic field of strength .005 T. What is the force on the proton?
What is 2.56e-15 N
300
An electron is placed in a uniform electric field of 600 N/C. Calculate the magnitude of the force it experiences as well as its acceleration.
What is 9.6e-17 N and 1.05e14 m/s^2
400
The Mystery Machine at 975kg is at rest at the top of a hill. It accelerates down the hill, reaching a speed of 20m/s after descending a height of 80m. What is the total change in mechanical energy?
What is -569400
400
A less-massive object is moving in the same direction as a more-massive object, but with a higher speed. They experience an inelastic collision. Which object will have a greater velocity after the collision?
What is the more massive object.
400
A 7 resistor, 8 resistor, and 9 resistor are connected in series with a 20V battery. Determine the voltage across each resistor.
What is 5.833, 6.666, and 7.4997
400
A long, straight wire carries a current of 11 A. Determine the strength of the magnetic field 30 cm from the wire.
What is 7.33e-6 I
400
A dust particle has been given a charge of 9e-6 C. What is the strength of the electric field 70 cm from the particle?
What is 1.65e5 N/C
500
Han Solo has a mass of 58.3kg. He slides down a frictionless hill that is 9m high. If Han starts from rest, what is his speed at the bottom of the hill?
What is 13.28m/s
500
While floating motionlessly in a space station 30kg Xenon pushes on 50kg Luke Skywalker. He sails away at 2m/s. What does she do?
What is she moves in the opposite direction at 3.33m/s
500
True or False: In a series circuit, the more light bulbs added the more current.
What is False
500
What is a permanent magnet?
What is A substance in which domains are aligned and remain in same orientation for a long period of time.
500
What does it mean when a charge is quantized?
What is It comes in integer multiples of a certain value of the elementary charge.