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Chuck Norris’s roundhouse kick is quite impressive. Suppose his foot begins from rest and takes two thirds of a second to swing totally around a 1.10-m circular arc. (a) If the angular acceleration is assumed constant for the first third of a second, and then zero after that, what is its magnitude? (b) What is the foot’s tangential acceleration through the first 0.33 s? What is (c) the maximum tangential speed his foot obtains and (d) at what percent of a full rotation does this occur?
You need a diffraction grating that will disperse the visible spectrum (400nm to 700nm ) through 35.0 degrees in the first-order pattern. What must be the line density of this grating
A 22.5 cm screwdriver is used to pry open a can of paint. If the axis of rotation is 2.29 cm from the end of the screwdriver blade and a force of 79 N is exerted at the end of the screwdriver’s handle, what force is applied to the lid? Answer in unit..
An air puck of mass 0.250 kg is tied to a string and allowed to revolve in a circle of radius 1.14 m on a frictionless horizontal table. What is the speed of the puck
Consider an object on an incline where friction is present. The angle between the incline and the horizontal is ?, Find an expression for the acceleration of this object. Treat down the incline as the positive direction
An electron enters a region where the electric field is uniform, directed vertically downward, and has a magnitude of 700 N/C. This region of uniform field is 1. 5 cm long and 0. 7 cm high. Find the magnitude of the vertical deflection of the elect..
a cork shoots out of a champagne bottle at an angle of 35 degrees above the horizontal. if the cork travels a
A 5.50 kg ornament is hanging by a 1.40 m wire when it is suddenly hit by a 3.00 kg missile traveling horizontally at 12.0 m/s. What is the tension in the wire immediately after the collision
a curve with a 130m radius on a level road is banked at the correct angle for a speed of 20 ms?if an automobile rounds
A horizontal pipe 14.0 cm in diameter has a smooth reduction to a pipe 7.00 cm in diameter. at what rate does water flow through the pipes
A bar of lead (bar A) is in thermal contact with a bar of silver (bar B) of the same length and area. Find the temperature at the junction when the energy flow reaches a steady state
A sound wave in air has a frequency of 264Hz and travels with a speed of 347m/s. How far apart are the wave crests
An artificial satellite circles the Earth in a circular orbit at a location where the acceleration due to gravity is 5.84 m/s2
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