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An electron travels at a speed of 2.0 x 104 m/s through a uniform magnetic field of strength 1.2 x 10-3 T. What is the magnitude of the magnetic force on the electron if its velocity and the magnetic field:
a) Are perpendicular
b) Make an angle of 45o
c) Are parallel
d) Are exactly opposite?
A screen is placed 52.4 cm to the right of the converging lens. A diverging lens is placed between the converging lens and the screen. What is the focal length f2 of the diverging lens
A capacitor with an initial potential difference of 144 V is discharged through a resistor when a switch between them is closed at t = 0 s. At t = 10.0 s, What is the time constant of the circuit
Two identical masses are in a hemispherical bowl of radius R. One block is sitting at the bottom and the other is at the top. how high will each of them rise
Oxygen gas having a volume of 1050 cm3 at 35.0°C and 1.01 105 Paexpands until its volume is 1550cm3 and its pressure is 1.06 105 Pa. Find the number of moles of oxygen present
a 200 ib student sits on a 25 ib chair. the radius of gyration of the student is 0.3 ft and the chairs radius of
question1in an assembly operation a robot moves an object first straight upward and then also to the east around an arc
Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Identify the average force that the water exerts on the diver. This force is nonconservative.
a 4-omega and 6-omega resistor are connected in series to a battery with V=12V. Calculate the power dissipated in the 6-omega resistor
A cat is being chased by a dog. Both are running in a straight line at constant speeds. How fast did the cat run
On a frictionless surface, a 3-kilogram cart moves at a velocity of 2 meters per second west, What is this slower speed
John weighs 716 N, and Marcia weighs 506 N. Estimate the gravitational force between them when they are 0.45 m apart
q1. over a 30-day period a power plant generates an average of 751 mw of electrical power and 1225 mw of waste heat and
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