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In the e/m experiment, if the accelerating voltage is 300 Volt and the radius of the bean path is 3.2 centimeter, Find the:
a. speed of the electron?
b. magnitude of the magnetic induction?
c. centripetal force on a single electron?
d. Lorentz force on a single electron?
e. current required in a pair of Helmholtz coils of radius 15 cm?
a 1.53-cm-high object is placed 20.0 cm in front of a concave mirror with a 4.26-cm focal length. what is the position
A 940kg motorboat accelerates away from a dock at 2.1m/s^2 .t Its propeller provides a thrust force of 4.0kN. What drag force is exerted by the water on the boat
A 0.250-kg ball is dropped from a height 10.0 cm onto a spring. If the spring constant is 60.0N/m what is the distance will the spring be compressed, how high will the ball go
An elevator is moving up at a constant velocity of 2.5 m/s Calculate the force the floor exerts on the passenger, Calculate the force the floor exerts on the passenger
question a -4.0-microc charge is situated at the origin of an xy-coordinate system. what is the magnitude and direction
A tennis ball of mass m=.080kg and speed v=30m/s strikesa wall at a 45 degree angle and rebounds with the same speed at 45degrees
A car is going with a constant speed of 15 m/s (about 34 mph) in a school-crossing corner, where the speed limit is 10 m/s (about 22 mph). What is the speed of the police car at that point
One side of the roof of a building slopes up at 34.0°. A student throws a Frisbee onto the roof. It strikes with a speed of 15.0 m/s and does not bounce, but slides straight up incline. The coefficient of kinetic friction between plastic and roof is ..
Vector A, which is directed along an x axis, is to be added to vector Bvec , which has a magnitude of 3.0 m, with a magnitude that is 5 times that of A, What is the magnitude of A
A fully charged capacitor with a voltage of 270 kV is discharged through a resistor. What is the voltage across the capacitor at the end of four time constants?
A 2.25kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 20.6N is required to hold the mass at rest when it is pulled 0.215m from its equilibrium position, Calculate the total energy of the oscillating..
An astronaut travels to Mars with a speed of 8400 m/s. After 1 month (30.0 days) of travel, as measured by clocks on Earth, how much difference is there between the Earth clock and the spaceship clock? Give your answer in seconds.
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