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Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the wheel's energy can be released quickly to accomplish a task that demands high power. An industrial flywheel has a 1.5m diameter and a mass of 270 kg. Its maximum angular velocity is 1500 rpm. How much torque does the flywheel exert on the machine?
A horizontal spring is lying on a frictionless surface. One end of the spring is attaches to a wall while the other end is connected to a movable object. What is the speed of the object at the instant
Two long, straight, parallel wires of length 3.6 m carry parallel currents of 3.2 A and 0.9 A. What is the magnitude of the force between the two wires
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
Determine the stopping distances for a car with an initial speed of 94 and human reaction time of 0.90 , for an acceleration
A circuit has a 12 V source connected to a 5 Ohm resistor and 7 Ohm resistor in series. A current of 1 A flow through them. What is the power dissipated across the small resistor
A 3.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and gasoline are warmed to 60.0°C, how much gasoline spills out
A person walks up a stalled 14 m long escalator in 81 s. When standing on the same escalator, now moving, the person is up in 48 s. How much time would it take that person to walk up the moving escalator?
What are the magnitudes of forces that act upon links? What is the tension in the rope and one end of the catenary is fixed to the left pole. Massless rope of length l connects second end of the catenary and the second pole.
two point charges are on the y axis. A 3.50 uc charge is located at y=1.1cm, and a -2.16 uc charge at y=-1.4cm. find the total electric potential at origin in volts
An 11.00 kg crate is placed on a horizontal conveyor belt. The materials are such that static friction = 0.47 and kinetic friction = 0.24.
A vector has components of 10.0 units along the x axis and 11.0 units along the y axis. What is the magnitude of the vector
A 1.93kg block is placed against a compressed spring on a frictionless 27degree incline. How far up the incline will the block go before coming to rest
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