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A solid cylindrical disk has a radius of0.13 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a40 N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 90 rad/s2. What is the mass of the disk?
There is force of F = 2.5N i + 3.5N j at r = 1.0m j - 4.0m k. What is the angle between the force vector and the radius vector
question1two boys are pulling a car of mass 800 kg along a level surface with a pair of ropes attached horizontally.
A 63kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.9m/s, How fast is he going as he lands on the trampoline, 2.0 m below
Each second, 1150 m3 of water passes over a waterfall 95 m high. At what rate does the generator produce electrical energy
Sodium ions (Na+) move at 0.861 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
Calculate the wavelength of light emitted by a hydrogen atom when an electron makes a transition from n=8 to n=2 levels
A speed skater moving across frictionless ice at 8.4 m/ s hits a 5.2 m -wide patch of rough ice. She slows steadily, after that continues on at 6.3 m/s.
Assuming that the distance between the Earth and the Sun is approximately 1.5E11 m, the mass of the sun is 1E31 g, how long do we have before the sun runs out of fuel
Two parallel wires lie in the plane of the paper with equal magnitude 5.0 A currents in the opposite direction. find the magnitude and direction of the magnetic field
A researcher would like to perform an experiment in a zero magnetic field, which means that the field of the earth must be cancelled. What current is needed in the solenoid's wires
To recharge a 12 V battery, a battery charger must move 3.6 x 10^5 C of charge from the negative terminal to the positive terminal. How much work is done by the charger
The masses of the earth and moon are 5.98*1024 and 7.35*1022 kg, respectively. Identical amounts ofcharge are placed on each body, such that the net force(gravitational plus electrical) on each is zero. What is the magnitude of the charge placed on..
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