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A bullet is fired horizontally from a gun. At the exact instant the trigger is pulled, a ball is released from the exact same height as the gun and allowed to fall to the ground. Which projectile hits the ground first, or do they hit at the same time?
A rescue helicopter lifts a 79-kg person straight up by means of a cable. Use the work-energy theorem and find the final speed of the person
A heavy piece of hanging sculpture is suspended by a 90 cm-long, 5.0 g steel wire, What is the mass of the sculpture
An ac source of maximum voltage V0 = 30 V is connected to a resistor R = 50 O, an inductor L = 0.6 H, and a capacitor C = 20 µF. What is the maximum charge on the capacitor when the frequency of the source is set to the resonance frequency of the cir..
A lens has a focal length of 40 mm magnifier. An object viewed with the magnifier is 5.3 mm tall, What is the angular magnification of the magnifier
Water flows at 0.855 m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an upstairs bathtub 3.70 m above the heater is 414-kPa. What's the flow speed in this pipe?
A string with a mass m = 5.00 g and a length L = 9.00 m has one end attached to a wall; the other end is draped over a small, what is the fundamental frequency of its vibration
an artillery piece is aiming at a target on a cliffacross a river. the horizontal distance of the target from the gunis 300 meters, what is the maximum height reached by the shell fired from the gun
A hiker moves from base camp a distance of 1250 m due East, then another 845 m in a direction 60.0 degrees North of East. What is the final displacement and direction from base camp
A ballplayer standing at home plate hits a baseball that is caught with another player at the same height above the ground from which it was hit. The ball is hit with an initial velocity of 22.0m/s at an angle of 49.0° above the horizontal.
a car rounds a flat curved road radius 100 m at a speed of 25.0 ms and is about to slide at this speed. what is the
An explosion breaks an object into two pieces, one of which has 1.5times the mass of the other. how much kinetic energy did each piece acquire
A compound microscope has an objective lens of focal length 10.50 with an eyepiece of focal length 14.80, and it produces its final image at infinity. The object to be viewed is placed 2.00 beyond the focal point of objective lens.
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