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Helium-neon laser light of wavelength 1004.5 nm is sent through a 0.473 mm wide single slit. What is the width of the central maximum on a screen 1.58 m from the slit? Answer in units of mm
A real image 1.5 cm high is 18.0 cm from a thin lens. The image is on the opposite side of the lens, 32.2 cm from the object. How big is the image
A spherical mirror is to be used to form an image 5.20 times the size of an object on a screen located 4.20 m from the object, What is the required radius of curvature of the mirror
The difference in potential between the accelerating plates of a TV set is about 26000 V. If the distance between these plates is 1.5 cm, find out the magnitude of the uniform electric field in this region.
A person has an exposed body area of 1.2 m2 and a body temperature of 37 oC. What is his heat loss by radiation if the surrounding walls are at a temperature of 22.5 oC? (Round answer to two significant figures)
What is the pressure change in water going from a 3.0- cm-diameter pipe to a 2.1- cm-diameter pipe if the velocity in the smaller pipe is 5.0 m/s
A 1000 kg flat railroad car is rolling to the right at 4.5 m/s. A 60 kg man, is standing on the right end of the cart watching the track in front of the car. What is the final speed of the train car with the mud stuck to it
A small plastic ball of mass m = 1.50 g is suspended by a string of length L = 24.5 cm in a uniform electric field, what is the net charge on the ball
A 4-kg rock is tied to the end of a string and twirled overhead, 1.7 m above the ground, in a 1.1-m radius, horizontal circle. How far away from its location when the string breaks will the rock hit the ground
Given a pair of forces, one with magnitude 27.3 N at an angle of 24 degrees clockwise from the +x direction and the other with magnitude 15.7 N exactly in the +x direction: Find the direction of the acceleration
A horizontal force does 50 J of work on a box, while the kinetic friction force, between the box and the floor, What is the cange inn the box's kinetic energy
A block with mass m1 = 8.8 kg is on an incline with an angle ? = 39.0° with respect to the horizontal. What is the minimum spring constant of the spring to keep the block from sliding
You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams, What is the metal weights density
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