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Question1
A playground merry-go-round of radius R = 1.80 m has a moment of inertia I = 255 kg.m2 and is rotating at 8.0 rev/min about a frictionless vertical axle. Facing the axle, a 26.0 kg child hops onto the merry-go-round and handles to sit down on its edge. What is new angular speed of the merry-go-round?
Question2
To extend a relaxed biceps muscle 2.2 cm requires a force of 25 N. Find out Young's modulus for the muscle tissue, assuming it to be a uniform cylinder of length 0.24 m and cross-sectional area 52 cm2.
Question3
A child exerts a tangential 40.8 {N} force on the rim of a disk-shaped merry-go-round with a radius of 2.30 {m}.If the merry-go-round starts at rest and acquires an angular speed of 0.0830 {rev/s} in 4.50 {s}, what is the mass?
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
A resistor is in the shape of a cube, with each side of resistance R . Find the equivalent resistance between any two of its adjacent corners.
Question: Field and force with three charges? What is the electric field at the location of Q1, due to Q 2 ?
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Illustrate the cause of the components accelerating from rest down the conveyor.
Calculate the dc voltage applied to the circuit.
Quadrupole moments in the shell model
Determine the tension in each string
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
Evaluate maximum altitude?
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