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A block of mass 2.50 kg is pushed 2.00 m along a frictionless horizontal table by a constant 16.0 N force directed 25.0° below the horizontal.
(a) Determine the work done by the applied force.
(b) Determine the work done by the normal force exerted by the table.
(c) Determine the work done by the force of gravity.
(d) Determine the work done by the net force on the block.
What is the resultant velocity of the lightning bug. find the force provided by the cable.
Two circular disks, each of area 1.90E-4 m2, are situated parallel to one another. The distance between them is small compared with their radii, Compute the force exerted by one on the other
Two students are on a balcony a distance h above the street. One student throws a ball vertically downward at a speed vi; at the same time, the other student throws a ball vertically upward at the same speed. Answer the following symbolically in t..
A late night time talk show host drops a watermelon from the top of the studio. If the speed of the watermelon is 21 m/s when it hits the ground, how tall is the studio?
what is the combined mass of the dog and basket.
A wrecking ball (weight = 5010 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3670 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
The car and minivan collide and stick together. Suppose the direction of the wreckage after the impact is 42.0° above the x axis.
A. how much time does the car take to travel between the two points? B. what is the displacement between the starting and ending points? C. what is the average velocity? D. What is the change in velocity? What is the average (vector) acceleration?
A research submarine has a 10-cm-diameter window that is 8.9cm thick, What is the submarine's maximum safe depth in salt water
How many electrons would have to be removed from one sphere and added to the other to cause an attractive force between the spheres of magnitude 1.00 x 10^4 N (roughly one ton)? Assume that the spheres may be treated as point charges.
Unexpectedly, is about the similar for the muscles of all animals and has the numerical value of in SI units.
Below are birds-eye views of six identical toy cars moving to the right at 2? Various forces act on the cars with magnitudes and directions indicated below. All forces act in the horizontal plane and are either equivalent or at 45 or 90 degrees to ca..
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