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A hockey puck has an initial velocity of 42 m/s and a final velocity of 26 m/s.
a. If it travels 25 m during this time, what is the acceleration
b. if the mass of the puck is .16 kg, what is the horizontal force on the puck?
A physics professor, equipped with a rocket backpack, steps out of a helicopter at an altitude of 592 m with zero initial velocity. (Neglect air resistance.), What is the duration of her slowing-down period
What is the direction of the induced current in a wire loop that is over a magnetic field, in which the magnetic field is increasing but the loop is not moving?
A 2.00 kg mass is connected to a spring with a spring constant of 6.00 N/m. What is the maximum velocity the simple harmonic motion
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 4.0 m/s. What is the volume flow rate through the pipe
A galvanometer has a coil resistance of Rgalv = 46.7 ?. It is to be made into an ammeter with a full-scale deflection equal to I = 1.45 A. what size shunt resistor should be used
A 55.6 kg child slides down a water slide with a velocity of 0.9 m/sec at the top. At the bottom of the slide, she is moving horizontally, y=1.5 meters above the water. She splashes into the water d=2 meters to the left of the bottom of the slide.
Put A 220 lb man presses the brakes with a force of 28 lbs/in2 to stop his car while traveling at a speed of 48 mi/hr. find the amount of deceleration experienced by him
Light from an argon laser strikes a diffraction grating that has 5306 lines per centimeter. Determine the wavelength of the laser light
a small ball rolls horizontally off the edge of a tabletop of height h. it strikes the floor a distance x horizontally
a block of wood has specific gravity 0.79. When placed in water, what percent of the volume of the wood is under the surface. And what volume of the wood is above the surface
Starting at rest, two students stand on 11.5-kg sleds, which point away from each other on ice, and they pass a 5.50-kg medicine ball back and forth. How fast is the student on the right moving after the pass
The distance between the objective and eyepiece lenses in a microscope is 25\; cm. What is the total linear magnification for the microscope
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