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A concave mirror has a focal length of 25.8 cm. The distance between an object and its image is 51.4 cm. Find (a) the object and (b) image distances, assuming that the object lies beyond the center of curvature and (c) the object and (d) image distances, assuming that the object lies between the focal point and the mirror. Please supply an explanation.
A shopper in a supermarket pushes a cart with a force of 52 N directed at an angle of 25° below the horizontal. What is the net work done on the cart by all forces
A baseball pitcher delivers a fastball that crosses the plate with an angle of 5.77 degrees relative to the horizontal and a speed of 87.9 mph. What is the magnitude of the impulse received by the ball
If the police car accelerates uniformly at 3.00m/s^2 and overtakes the speeder after accelerating for 9.00 s, illustrate what was the speeder's speed?
The place you get your hair cut has two nearly parallel mirrors 7.0 apart. As you sit in the chair, your head is 1.5 from the nearer mirror. How far away does the back of your head appear to be
A mass of .500 kg is connected to a spring of spring constant 30 N/m. The oscillation begins by pulling the mass to the right to amplitude 0.40 m before release, what is the damping constant of the oscillation
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
Must show all work and calculations!!!! A primitive yo-yo is made by wrapping a string several times around a solid cylinder with m=200g and r=10cm. Find the tension in the string and the acceleration of the cylinder
What is the maximum value of the electric field in an electromagnetic wave whose average intensity is 3.75W/m^2 ?
sample of an ideal gas is taken through the cyclic process abca at point a, T = 385 K. How many moles of gas are in the sample, What is the net energy added to the gas during the cycle
A person sitting quietly in a room on a winter day may lose heat primarily by radiation from the outer surface of her clothes to the walls of the room. what is the temperature of the outer surface of the clothes
An airplane pilot wishes to fly due west. A wind of 88.0 km/h is blowing toward the south. What is the speed of plane over the ground in km/h.
Calculate the specific heat of a metal from the following data. A container made of the metal has a mass of 3.3 kg and contains 15 kg of water. A 1.0 kg piece of the metal initially at a temperature of 170°C is dropped into the water
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