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A bicycle has wheels with a diameter of 0.680 m. It accelerates uniformly and the rate of rotation of its wheels increases from 211 rpm to 280 rpm in a time of 28.9 s. Find the linear (tangential) acceleration of the rim of the bicycle's wheels (in the reference frame of a cyclist riding the bike).
My car has rear defrosters that are made of 13 wires embedded into the rear window. They can melt a thin layer of ice, What is the cross-sectional area of each wire
A 1.0-kg block is pushed up a rough 22° inclined plane by a force of 7.0 N acting parallel to the incline. Determine the magnitude of the force of friction acting on the block
A negatively charged particle moving at 45 ? angles to both the y -axis and z -axis enters a magnetic field, What is the initial direction of deflection?
IF Earth's orbit were suddenly to become much more eccentric. keeping orbital semimajor axis as is, fixed at 1 AU, but let's imagine shifting both the Earth's perihelion and aphelion points by 0.9 AU, so that at perihelion we were only 0.1 AU from th..
q1. the coefficient of static friction between the coin and the disk is 0.50. find out the linear speed of coin while
The two liquids do not mix. What is the difference in height between the top surface of glycerine and top surface of the alcohol.
A 19-kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 5 m, how far do the wires stretch
A tennis player swings her 1000g racket with a speed of 10m/s . She hits a 60g tennis ball that was approaching her at a speed of 21m/s. what is the average force that the racket exerts on the ball
Find the critical angle of incidence for a ray of light going from a diamond to air
A small ball rolls horizontally off the edge of a tabletop that is 1.24 m high. What is its speed at the instant it leaves the table
The Millenium Falcon is chased by the Imperial Forces. The ship is moving at a speed of 0.615 c. What is the velocity of the protons in the resting frame when the cannon is shot in the backward direction
A hypodermic syringe is attached to a needle that has an internal radius of 0.304 mm and a length of 3.05 cm. What force must be applied to the plunger, which has an area of 1.05 cm2
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