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An extremely light rod 1.00 m long has a 2.00-kg mass attached to one end and a 3.00-kg mass attached to the other. The system rotates at a constant angular speed about a fixed axis perpendicular to the rod that passes through the rod 30.0 cm from the end with the 3.00-kg mass attached. The Kinetic Energy of the system is measured to be 100J. What is the moment of inertia of the system about the fixed axis? What is the angular speed (in rev per sec) of the system?
A uniform ladder 5.0 m long rests against a frictionless, vertical wall with its lower end 3.0 m from the wall. The ladder weighs 180 N. What is the actual frictional force when the man has climbed 1.0 m along the ladder
A charge of -3.2 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass, which has a radius of 0.099 m. The charges on the circle are -3.95 µC at the position due north and +5.45 µC at the position du..
A laser with a power output of 2.10 mW at a wavelength of 425 nm is projected onto calcium metal. Given the binding energy is 2.28 eV, how many electrons per second are ejected
W hat is lumberjacks speed relative to the shore
A particle of mass 7.7 × 10-8 kg and charge +8.0 ?C is traveling due east. It enters perpendicularly a magnetic field whose magnitude is 3.2 T, How much time does the particle spend in the magnetic field
A speedboat moves on a lake with initial velocity vector v1,x = 8.21 m/s and v1,y = -2.95 m/s, What are the components of the speedboat\'s final velocity, Find the speedboat's final speed
Which of the following factors do not affect the pressure at the bottom of a cup? Explain answer a. Depth of the liquid b. Density of the liquid c. The value of the acceleration of gravity d. The shape of the cup
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
A child on the merry-go-round is moving with a speed of 1.15 m/s when 1.10 m from the center of the merry-go-round.
On planet Tehar, the free-fall acceleration is the identical as that on Earth, but there is also a strong downward electric field that is uniform close to the planet's surface.
A horizontal force of magnitude 100 N begins to pull directly on block. In unit-vector notation, what are the resulting accelerations of (a) block and (b) slab.
A speedy tortoise can run at 0.01 meters per second and a hare can run 21 times as fast. In a race they both start at the same time; however the hare stops to rest for 1.50 minutes. So the tortoise wins by a shell (20 cm).
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