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a 120kg horizontal flywheel with a 0.5m radius rotates friction-free about an axis through its center. A rope is wrapped around the outside of the flywheel and a steady pull of 60.0N is exrted on the rope. The flywheel starts from rest and is unwound in 4 seconds. The moment of inertia of a disk is 1/2MR^2.
A) what is the torque applied to the wheel?
B) what is the angular acceleration of the flywheel?
C) How many rotations does the flywheel make?
D) What is the length of rope needed?
Determine the magnitude of the emf induced in the loop after exactly time 6 has passed since the circumference of the loop started to reduce.
You place an object with an electrical charge of +0.256 C at a point in space, What is the magnitude and direction of the electric field at that point in space
A series RC circuit with C = 32 μF and R = 6.8 Ω has a 24 V source in it. With the capacitor initially uncharged, an open switch in the circuit is closed. what is the voltage across the capacitor
A submarine is located 2.000 km below the surface of the water. What is the absolute pressure of the seawater on the outside of the submarine
The mass of the barge is 9000 kg, and its acceleration is 0.15 m/s2 down the canal. Illustrate what are the magnitude and the direction of the force on the barge from the water?
A runner covers one lap of a circular track 40.0m in diameter in 63.3s. what were her average velocity(in m/s) for that half-lap
A series RLC circuit contains a 2200 ohm resistor, a 14.0 nF capacitor, and a 0.0300 H inductor. what is the ratio of the charge to its initial value
A charged line extends from y = 2.50 cm to y = -2.50 cm. The total charge distributed uniformly along the line is -8.50 nC. Find the magnitude of the electric field on the x-axis at x = 10.0 cm
A stationary spherical conductor with a radius of 2.00 cm has a potential of -257 V on the surface. What is the impact speed of the proton
A motorcycle is traveling up one side of a hill and down the other side. Determine the maximum speed that the cycle can have
The generator at a power plant produces AC at 29,000 V. A transformer steps this up to 305,000 V for transmission over power lines, how many turns must there be in the output coil
An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5500V. It then passes between two horizontal plates 6.5cm long and 1.3 cm apart that have a potential difference of 250V. At what angle wil..
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