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You push an object of mass m slowly, partway up a loop-the-loop track of radius R, starting from the bottom, where the normal force to the track is vertically upward and ending at a point a height h < R above the bottom. The coefficient of friction between the track and the object is a constant μ.
Determine the work you do against friction?
two polarizers are oriented at 38 degrees to one another. what percent reduction in intensity takes place
Find out the edge dimension of each cube
A thin film of acetone (n = 1.25) coats a thick glass plate (n = 1.58). White light is incident normal to the film. Estimate the thickness of the acetone film
A right circular cylinder has radius of 1cm and contains Hg ( d= 13.596 kg/l), Determine length of mercury column and length of water column
firemen are shooting a stream of water at a burning building. a high-pressure hose shoots out the water with a speed of
The air speed indicator of a plane that took off from Detroit reads 343 km/h and the compass indicates that it is heading due east to Boston. Calculate the speed of the plane with reference to the ground
ship a is located 4.8 km north and 2.5 km east of ship b. ship a has a velocity of 22kmh toward the south and ship b
The press box at a baseball park is 40.0 above the ground. find the horizontal distance from the press box to second base
An 89.6-kg jogger is heading due east at a speed of 2.97 m/s. A63.1-kg jogger is heading 18.2 ° north of east at a speed of2.26 m/s. Find (a) the magnitude and(b) the direction of the sum of the momenta of the two joggers. Describe the direction as a..
a charge q1 3.00 nc is placed at the origin of an xy-coordinate system and a charge q2 -1.00 nc is placed on the
How much work must be done to bring three electrons. calculate the mass of an ice cube.
A 18.4 kg cart traveling at 5.63 m/s (this movement defines thepositive direction) has a head on perfectly inelastic collision with a 6.9 kg cart traveling at 7.06 m/s. How much kineticenergy is lost in the collision?
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