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The projection lens in a certain slide projector is a single thin lens. A slide 24.5 mm high is to be projected so that its image fills a screen 1.89 m high. The slide-to-screen distance is 2.98 m.
(a) Determine the focal length of the projection lens. mm
(b) How far from the slide should the lens of the projector be placed to form the image on the screen?
A long solenoid has n turns per unit length and a radius R. If the current in the solenoid varies as I(t) = I(0)sin(wt), what is the induced electric field as a function of r both inside and outside the solenoid
A proton (mass 1.67*10 ^-27 kg) is moving at 1.40*10 ^-6 m/s directly toward a stationary helium nucleus (mass 6.64*10 ^-27 kg), After a head-on elastic collision, what is the helium's velocity
A certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 32.0 m/s. With what maximum speed can it go
A 7.5m long extension cord carries a current of 12 amps. The cord is made of two wires, carrying currents in opposite directions, separated by a distance of 4.9mm
An object is in front of a converging lens (f = 0.370 m). The magnification of the lens is m = 3.60. Through what distance should the object be moved
How far will it travel before becoming airborne
A block rests on a horizontal surface, and the coefficient of static friction between the block, Find the frequency at which the block begins to slide on the surface
A hollow cylinder (hoop) is rolling on a horizontal surface atspeed v = 1.95 m/s when itstarts up a 23.5° incline. How far along the incline will it go
If a cell’s membrane thickness doubles but the cell stays the same size, how do the resistance and the capacitance of the cell membrane change?
A sinusoidal voltage ?v = (75 V) sin (160t) is applied to a series RLC circuit with L = 10 mH, C = 145 ?F, and R = 44 ?. What is the maximum current in the circuit
A thin rectangular plate of uniform areal density ? = 2.90 kg/m2 has length of 34.0 cm and width of 24.0 cm. There is a circular hole of radius 6.00 cm with center at (x,y) = (11.00,10.00) cm in the plate. Calculate the mass of plate
What is the rms speed of the molecules in low-density hydrogen gas at 0 ^circ {rm C}? (The mass of a hydrogen molecule, rm{H_2} , is 3.32×10-27 kg ).
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