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a flat mirror and a wall meet at a 45 degree angle. light strikes the mirror 10 meters from the corner at an angle of incidence of 45 degrees. how far from the corner does the reflected light strike the wall?
A listener increases his distance from a sound source by a factor of 3.05, what is the change in the sound intensity level in dB
One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. Each lab group is challenged to determine the heaviest rock that can be placed in the bottom of a plastic boat without sinkin..
Blood is pumped from the heart at a rate of 5 L/min into the aorta (of radius 1.01 cm). Determine the speed of blood through the aorta
Find the total power radiated out into space by the Sun assuming it to be at a temperature of 5500 K and the emissivity is 1
1 a service station charges a battery using a current of 6.7 a for 5.0 h. how much charge passes through the battery?2
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. Find the time it takes for the ball to fall from rest all the way to the ground
A high-voltage copper transmission line with a diameter of 2.60 cm and a length of 130 km carries a steady current of 1.03 103 A. what time interval does one electron travel the full length of the line
Two in-phase loudspeakers are some distance apart. What is the spacing between points where constructive interference occurs? The speed of sound in air is 343 m/s
A railroad locomotive with a mass of can exert a force of. At what rate can it accelerate when pulling a train
A nail projects 25.0 mm horizontally outward from a wall. A 400 N picture is hung from the end of the nail, what is the diameter of the nail
A voltage of 20.0 V is applied across the two ends of a Tungsten wire with a temperature coefficient of resistivity of 4.50×10-3 1/K. determine the power dissipated by the wire
A block of mass 5kg is attached to a spring of 3000N/m and compressed a distance of 0.3m. What are the period, frequency, and angular frequency
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