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A transverse wave traveling in a string in the -x direction has a period of 12.56 s. The tension of the string is 24.0 N and a 4.0 m piece of the string has a mass of 240 g. It is observed that any point on the string oscillates between +80 cm and -80 cm in the y-direction. Assuming the phase constant to be zero, write out the wave function of the wave. Find the transverse speed of a point on the string at x = 2.0 m at time t - 4s.
A certain nuclear power plant is capable of producing 1.3×109 W of electric power. How much mass is converted per hour if the efficiency of the plant is 29 percent
a block of mass 0.68 kg is suspended by a string which is wrapped so that it is at a radius of 0.064 m from the center
A 10 kilogram lead ball is dropped from a height of 30 m and it hits the floor at a speed of 20 m/s. Find how much mechanical energy is lost to air resistance
A 17-kg dog is standing on the edge of a stationary, frictionless turntable of rotational inertia 95kg?m2 and radius 1.70m. What fraction of a full circle does the dog's motion make with respect to the ground
A chocolate bar (40grams) has 210 Calories. Approximately how long would the 100 watt light bulb shine if we convert all the chocolate's energy into electricity (100% efficiently)? (Remember 1Cal = 1000 cal = 4200 joules)
Now, a second resistor R2 of 3.2x10^5 ? is connected in parallel to the existing resistor in the circuit, What will be the new time constant
A farm truck moves due east with a constant velocity of 9.50m/s on a limitless, horizontal stretch of road. A boy riding on the back of the truck throws a can of soda upward and catches the projectile at the same location on the truck bed, but 16.0m ..
The projection lens in a certain slide projector is a single thin lens. A slide 24.7 mm high is to be projected so that its image fills a screen 1.82 m high. Determine the focal length of the projection lens
A hockey player is standing on his skates on a frozen lake when an opposing player skates by with the puck, moving at a uniform speed of 12m/s. How long does it take to catch the opponent
q1. a 2700-kg satellite is in a circular orbit around a planet. the satellite travels with a constant speed of 6270 ms.
A uniform, upward-pointing electric field E of magnitude4.00×103N/C has been set up among two horizontal plates with charging the lower plate positively and the upper plate negatively. The plates have length L = 4 cm and separation d = 2.00 cm. Elect..
a long wire carries current of 30.0 A parallel to the positive x-axis, except for three of the four segments that follow the edges of a cube of side length 0.30m, What is the magnitude of the net magnetic force on the wire
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