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A 2.40*10^2 N force is pulling a refrigerator across ahorizontal surface.The force acts at an angle of 20.0degree abovethe surface. The coefficient of kinetic friction is 0.200 andthe refrigerator moves a distance of 8.00m
a) what is the work done by the pulling force?
b) what is the work done by the kineticfrictional force?
A teenager pushes tangentially on a small hand-drivenmerry-go-round and is able to accelerate it from rest to afrequency of 20 rpm in 8.0 s. What force is required at the edge
You fill up your gas tank in Europe when the euro is worth $1.25 and gasoline costs 1.33 euros per liter. What is the cost of gasoline in dollars per gallon
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that in Figure 3.11 and has a range of 16 m. Suppose the launch speed is doubled, and the projectile is fired at the same ..
A horizontal force of 100 N is applied to move a 45-kg cartacross a 9.0-m level surface. What work is done by the 100-N force
You are part of a searchand- rescue mission that has been called out to look for a lost explorer. What minimum speed must the rocket have just before impact in order to save the explorer%u2019s life
A 50.0-kg boy runs at a speed of 10.0 m/s and jumps onto a cart, what is the mass of the cart
An object starts from rest at time t = 0.00 s and moves in the +x direction with constant acceleration. compute the acceleration of the object
A 0.17- kg block on a wooden table is given a sharp blow with a hammer. The block then slides across the table to a stop. The coefficient of friction between the block and table is 0.25. How far does the block go
Two periodic waves interfere somehow. Both waves have the same frequency and wavelength. what is the range of amplitue of the resulting wave
what speed does boxcar have after 10 seconds.What is the object's displacement Dx.
a golfer tees off on level ground giving the ball an initial speed of 46.5 ms and an initial direction of 37.5 degrees
question1the pilot of a plane measures an air velocity of 186 kmh south. an observer on ground sees the plane pass
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