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A 7.0 kg box is raised from rest adistance of 1.0 m by a vertical forceof 120 N.
(a) Find the work done by the force.
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(b) Find the work done by gravity.
(c) Find the final kinetic energy of the box.
object o1 is 15.2 cm to the left of a converging lens with a 11.8-cm focal length. a second lens is positioned 10.0 cm
A car of mass 2200 kg collides with a truck of mass 4800 kg, and just after the collision the car and truck slide along, stuck together. find the velocity of the stuck-together car and truck just after the collision
A wheel rolls 5 revolutions on a horizontal surface withoutslipping. If the center of the wheel moves 3.2 m, what is the radius of the wheel
a 1490 kg car has just passed a diner. the closest the car came to the diner was r=40.5, what is the current magnitude of the angular momentum of the car about the diner
A pair of speakers separated by 0.700m is driven by the same oscillator at a frequency of 662Hz. An observer, originally positioned at one of the speakers, begins to walk along a line perpendicular to line joining the speakers. (Assume the speed o..
The radius of curvature of a loop-the-loop for a rollercoaster is 10.6 m. At the top of the loop,the force that the seat exerts on a passenger of mass m is0.70mg. Find the speed of theroller coaster at the top of the loop.
what is the total displacement of the jetliner between touchdown on the runway and coming to rest.
A proton with the mass m is projected into a uniform electric field that points vertically upward and has magnitude E. The initial velocity of the proton has a magnitude v_0 and is directed at an angle \alpha below the horizontal. A)Find the numerica..
Find the focal length (cm) of a simple magnifier which has a magnification of 5.5. Use 25 cm for the near point. Assume that the image is at infinity
A reasonable estimate of the moment of inertia of an ice skater spinning with her arms at her sides can be made by modeling most of her body as a uniform cylinder. Estimate the skater's moment of inertia to two significant figures
The given information is that a basketball is shot from an initial height of 2.40 m with an initial speed 14m/s directed at an angle 37 degrees above the horizontal
Two converging lenses, each of focal length 14.9 cm, are placed 39.6 cm apart, define Where is the final image formed
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