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Q. A 67 kg person sits on a 3.5kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.8 cm in diam. Determine the pressure exerted on the floor by each leg of the chair; Assume the weight is evenly distributed.
Q. A 2.6 kg brick is sitting still on an inclined plane that has an angle of 30 degrees. What is the frictional force on the brick from the inclined plane?
A person pulls a toboggan for a distance of 30-m along the snow with a rope directed 25.0° above the snow. The tension in the rope is 98-N.
What is the greatest amount through which the wavelength of an incident photon could change when it undergoes Compton scattering from an atom or molecule with a 19 u mass.
Find out the altitude of the plane
A 280-kg piano slides 4.3 m down a 30o incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.
find the velocity and position of the particle asthe moment it reaches it's maximum x coordinate.
Two boxes A and B are connected to each end of a light vertical rope. A constant upward force 80.0 is applied to box. Starting from rest, box descends 10.4 in 3.40. The tension in the rope connecting the two boxes is 37.0
The minimum stopping distance for a car traveling at a speed of 30 {m/s} is 60 {m}, including the distance traveled during the driver's reaction time of 0.50 {s}.What is the least stopping distance for the same car traveling at a speed of 41 {m/s}..
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
Two charged spheres are 8.45cm apart. They are moved, and the force on each of them is found to have been tripled. How far apart are they now.
The wire is cut at point P. Will the potential difference between points A and B increase, decrease, or remain the same? Give reason for.
A 128 carton is pulled up a frictionless baggage ramp inclined at 30.0 above the horizontal by a rope exerting a 72.60 pull parallel to the ramp's surface. If the carton travels 5.20 along the surface of the ramp, compute the work done on it by the r..
In the Compton Effect, momentum conservation applies so total momentum of the photon and the electron is the same before and after the scattering occurs.
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