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Q1. A wheel 45.0 cm in diameter accelerates uniformly from 206rpm to 340 rpm in 7.0 s. How far will a point on edge of the wheel have travelled in this time?
Q2. The inner conductor of a coaxial cable has a radius of 0.800 mm, and the outer conductor's inside radius is 4.00 mm. The space between the conductors is filled with polyethylene, that has a dielectric constant of 2.30 and a dielectric strength of 18 106 V/m. What is the maximum potential difference that this cable can withstand?
A 12 kg mass starts from rest and slides down an inclined plane 8.0 10-1 m long in 0.9 s. What net force is acting on the mass along the incline?
What is an average speed of the runner
Write down an expression for the efficiency of the air cart bumper in terms of the initial and final kinetic energy of the cart. What defines a collision as elastic or inelastic.
Calculate the period T and the tension in the string F as a function of the angle. Compute the moment of inertia of this system for an axis that passes through the combined center of mass and is perpendicular to the plane of the rings.
What is the direction of proton after the collision? What is the direction of carbon atom after the collision.
What is magnitude of the change in the magnetic field
For safety in climbing, a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. Whilst supporting a 96-kg climber, the rope elongates 1.4 m. Find its Young's modulus.
What average force athletes legs apply on a ground
A conveyor belt at a quarry lifts 2,000 kg of sand per minute up a vertical distance of 12 meters. The sand is originally at rest, then moves at a speed of 0.20 m/s all along the conveyor belt. What is the instantaneous power produced by this machine..
Two metal plates are held together by two steel rivets, each of diameter 0.24cm and length 1.2cm.How much force has to be applied parallel to the plates to shear off both rivets.
Evaluate the stability of of Na in the NaCl structure
What is moment of inertia
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