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In a pickup game of dorm shuffleboard, students crazed by final exams utilize a broom to propel a calculus book along the dorm hallway. If the 3.5 kg book is pushed from rest during a distance of 0.88 m by the horizontal 28 N force from the broom and then has a speed of 1.64 m/s, what is the coefficient of kinetic friction among the book and floor?
An airplane traveling at half the speed of sound emit a sound of frequency 5.75 kHz. Find at what frequency does a stationary listener hear the sound after the plane passes
How long could this energy be used to burn ten 60 W light bulbs? If this energy were used to raise a car of mass 1845 kg, to what height would the car be raised?
A certain satellite travels in an approximately circular orbit of radius 2.4 × 106 m with a period of 5 h 31 min. Calculate the mass of its planet from this information
A point source of light is 84.2 cm below the surface of a body of water. Find the diameter of the circle at the surface through which light emerges from the water. Water has an index of refraction of 1.33.
Two particles of masses m and 3m are moving toward each other along the x-axis with the same speed v. Determine the final speed of the heavier object
a 200g hockey puck is launched up a metal ramp that is inclined at a 30° angle. what vertical height does the puck reach above its starting point
An ideal fluid, with density of 0.85 ´103 kg/m3, flows at 7.0 m/s through a levelpipe with a radius of 0.50 cm. Find the speed of flow in the second pipe
we know that when a projectile lands at the same level it was launched it will have a maximum range if the launch angle
an airplane is traveling at 117 mph relative to the air 13 degrees e of n at an altitude of 5000 ft. it encounters a
A uniform steel bar swings from a pivot at one end with a period of 1.1s How long is the bar
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 5.49 10-2 kg/s. What is the speed at which the gasoline moves through the fuel line
suppose theres a cannon placed at the base of a mountain. we tilt the cannon at a 45-degree angle in the direction of
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