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A man of mass m = 70.0 kg pushes a rotating platform of mass M = 85.0 kg and radius R = 3.00 m at the playground with a tangential force tF of magnitude 55.0 N for 10.0 s. Ignore air resistance. a. What is the angular speed of the platform at the end of this time if the platform was initially at rest? b. The man then jumps onto the edge of the platform. What is the angular speed of the platform after he gets on?
An object falls because of gravity at a rate of -9.80 m/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo= 0) and its position starts from do= 0.0, where is it 10.00 Seconds later.
At a distance of 60.0km from a radio station antenna the electric-field amplitude is 8.80×10?2 V/m, what is the total power output of the station
A 5.5 %u03BCC point charge is placed in an external uniform electric field that has a magnitude of 68000 N/C
Two figure skaters, one weighing 625N and the other 700N , How much kinetic energy is created during the skaters maneuver
question1a 4.7-g object moving to the right at 38 cms makes a flexible head-on collision with a 9.4-g object that is
how long does it take light to travel 300,000 km in a vacuum? How far would a body near the surface of the earth fall in that time
What is the angular frequency in rev/s of combination.
An ALkaline earth atom has 2 valance electrons. Both can be spin up and spin down. Write the singlet states
q1. a crate of 31.9- tools rests on a horizontal floor. you exert a gradually increasing horizontal push on it and
You throw a ball straight down from an apartment balcony to the ground below. Find the height of the balcony
A particle has a charge of 600 o C and a mass of 0.6 nkg. This particle is placed in a uniform electric field of 1,200 N/C. Find the a) electrostatic force acting on the mass. If the particle is free from rest what is its acceleration.
The inner and outer shells are connected by a wire (passing through a hole in the middle shell, without touching it), so they are at the same potential.
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