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A student sits at rest on a stool that can rotate without friction. The moment of inertia of the student-stool system is 3.3 kg•m2. A second student tosses a 1.8 kilogram mass with a speed of 2.3 m/s to the student on the stool, who catches it at a distance of 0.34 meter from the axis of rotation. Find the resulting angular speed of the stool and the student?
questiona. draw one diagram showing plan view footprint of the building and nearby obstacles and others showing the
a factory worker pushes a 30.2kg crate a distance of 4.5m along a level floor at constant velocity by pushing downward
A car of mass 2200 kg collides with a truck of mass 4800 kg, and just after the collision the car and truck slide along, stuck together. find the velocity of the stuck-together car and truck just after the collision
Burning a pound of coal produces about 13,000 Btu of energy. How many megajoules of energy are produced by burning 4 pounds of coal?
An aircraft performs a maneuver called an aileron roll. During thismaneuver, the plan turns like a screw as it maintains a straightflight path, but using its ailerons to set the wings in circularmotion.
an aircraft with a mass of 977 kg accelerates from 0 to 97 ms in 9.6 seconds at which time the aircraft launches. what
A railroad car of mass 2.5 104 kg moving at 3.50 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 300 W. What is the Resistance of the Heater
A potential di?erence of 10 V is found to produce a current of 0.44 A in a wire of length 3.1 m with a uniform radius of 0.44 cm What is the resistivity of the wire
A magnetic field has a magnitude of 0.0011 T, and an electric field has a magnitude of 3.6 × 103 N/C. Both fields point in the same direction. A positive 2.3-?C charge moves at a speed of 4.1 × 106 m/s in a direction that is perpendicular to both fie..
An underwater camera has a lens of focal length 35.0 mm and a maximum aperture of f/2.80 . The film it uses has an emulsion that is sensitive to light of frequency 6.00×10^14 Hz. If the photographer takes a picture of an object 2.80 m in front of ..
A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1810 kg. Determine the total force on the spacecraft
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