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Problem: If an electron travels 0.150 m from an electron gun to a TV screen in 9.0 ns,
Part A: What voltage was used to accelerate it? (Note that the voltage you obtain here is lower than actually used in TVs to avoid the necessity of relativistic corrections.)
I don't know how to get that solution. Please help.
A magnetic field directed into the page-changes with time according to \(B = (0.05t^{2} + 0.4) T\) , where t is in s. The field has a circular cross-section of radius R = 0.05 m (Fig. 31.28). What are the magnitude and direction of the electric fi..
A uniform plank of length 5.8 m and weight 217N rests horizontally on two supports, with 1.1m of the plank hanging over the right support. To what distance x can a person who weighs 460 N walk on the overhanging part of the plank before it just beg..
A 4 kg block, resting on a horizontal surface, is struck by a bullet moving horizontally with a speed of 200 m/s. How much energy is dissipated (mostly as heat) in this collision process
Two point charges totaling 8.50 mu C exert a repulsive force of 0.100 N on one another when separated by 1.02 m. What is the charge on each
The first puck is deflected 35.8° to the right and moves off at 0.331 m/s. Find out speed of the second puck after the collision.
On a spacecraft, two engines are turned on for 658 s at a moment when the velocity of the craft has x and y components of velocity v0x = 4115 m/s and v0y =5135 m/s, Find the x and ycomponents of the craft's acceleration
a 0.230-a current is charging a capacitor that has circular plates 10.9 cm in radius. the plate separation is 4.00 mm.a
two wooden blocks rest on an inclined plane making an angle of 30 degrees to the horizontal. the coefficient of friction between the block and plane for the first uk= 0.20, how fast is each block moving when it reaches the bottom
A 76 kg astronaut floating inspace in a 111 kg MMU (mannedmaneuvering unit) experiences an acceleration of 0.035 m/s2,. What is the thrust of the thruster
An archer pulls her bowstring back 0.432 m by exerting a force that increases uniformly from zero to 227 N. What is the equivalent spring constant of the bow
A viewing window on the side of a large tank at a public aquarium measures 57 inches by 67 inches. Compute the total outward force on the window
A copper wire has a square cross section a on a side. The wire is L long and carries a current of I. The density of free electrons is ne. Estimate the magnitude of the current density in the wire
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