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Problem:
An electron moves at a speed of v = 3 x 107 m/s parallel to and a distance d = 10 cm from a conducting wire carrying a current of I = 40 A. If the directions of the electron and current are as shown in the figure, what is the magnitude (in N) and direction of the force experienced by the electron?
A bathroom scale measures the normal force being exerted down on it. A box of mass 9.2kg sits on a bathroom scale that reads 6.2N. What is the tension (in Newtons) in the cable attached to the top of the box
A dish of hot food has an emissivity of 0.48 and emits 15 W of thermal radiation. how much power will it radiate
in a physics laboratory experiment a coil with 180 turns enclosing an area of 13.5 cm2 is rotated during the time
A car is moving at 9 m/s along a curve on a horizontal plane with radius of curvature 46 m. The acceleration of gravity is 9.8. Find the rotational frequency of the wheel
question a 2kg mass is attached to a spring and you measure that the period of its oscillation is 2.36 seconds. what
A spring loaded ballistic pendulum gun requires an increasing force to load. Calculate the speed of the ball as it leaves the gun
A vector {vec A} has a magnitude of 40.0 {rm m} and points in a direction 20.0 ^circ below the positive x axis. A second vector, {vec B}, has the magnitude of 75.0 {rm m} and points in a direction 50.0 ^circ above the positive x axis.
In order to pass a physical education class at a university, a student must run 1.0 meter in 11.5 minute. Find what constant acceleration does she need
What is the minimum time required to raise the bucket a vertical distance of 14.0m without breaking the cord?
Assume L1 = 0.844 m and L2 = 0.401 m. Calculate the normal force exerted by the floor on each hand
A neutron star is the remnant left after certain supernovae (explosions of giant stars). Typically, neutron stars are about 20 in diameter and have around the same mass as our sun. What is a typical neutron star density in g/cm^3?
given three resistors r1 2 ohms r23 ohms and r3 4 ohms. how many combinations of equivalent resistance can you have.
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