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Q. A novice skier, starting from rest, slides down a frictionless 34° incline whose vertical height is 128 m. How fast is she going when she reaches the bottom?
Q. A 83 kg person sits on a 3.50 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.50 cm in diameter. Find out the pressure exerted on floor by each leg of the chair; assume the weight is evenly distributed.
David is driving a steady 26 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 at instant when David passes.
If you weigh 690 {rm N} on the earth, what would be your weight on the surface of a neutron star that has same mass as our sun and a diameter of 21.0 {rm km}.
A bus is traveling up a hill at a speed of 34m/s. The hill is 23 degrees relative to horizontal and the coefficient of static friction between the bus's tires and the road is 0.6. What is the car's minimum breaking distance?
The locomotive is moving at 25 km/h. The engineer of the high speed train immediately applies the brakes. What must be the magnitude of the resulting constant deceleration if a collision is to be just avoided.
A particle of mass M moves in one dimension along the positive x axis, under the influence of two forces. The first force is a constant force, with magnitude B and direction toward the origin. The second force is an inverse square law, with magnitude..
Compute magnitude and direction of magnetic field produced by the moving belt at a point just above its surface .
Find an equation for the change in wavelength of a scattered photon by Compton effect.
Phonology: All the data for this problem come from a conservative dialect of Vèneto, a Romance language spoken in northern Italy near the city of Padua.
suppose the specific heats of milk and coffe are the same as that of water, and neblect the specific heat of the container.
The truck slows down uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making skid marks 62.40 m long that end at the tree. With what speed does truck then strike the tree.
what is the maximum weight of the crate that the system can support? What is the angle needed for equilibrium.
If the accelerating plates are 1.60 apart, and have a potential difference of 2.60×10^4, what is the magnitude of the uniform electric field between them.
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