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Q. A skier with a mass of 66 kg starts from rest and skis down an icy (frictionless) slope that has a length of 57 m at an angle of 32° with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the skier begins to slow down, coming to rest in a distance of 135 m along the horizontal path.(a) What is the speed of the skier at the bottom of the slope(b)What is the coefficient of kinetic friction between the skier and the horizontal surface?
When these two wires are connected in equivalent to the same battery, describe the reasoning of the steps that allow you to find out which of these wires will consume the greater amount of power by warming up and dissipating this energy as heat.
How long is the bridge? Write down an equation for the bridge's height. And how far from the center of the bridge are two points if bridge's height at those points is 80 meters.
An air molecule is moving at a speed of 455 m/s. How many meters would the molecule move throughout 7ms (milliseconds) if it didn't collide with any other molecules.
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Batteries are rated in terms of ampere-hours (A h). For example, a battery that can produce the current of 3.00 A for 5.00 h is rated at 15.00 A h. What is the total energy stored in an 8.0-V battery rated at 49.0 A h.
A proton moves perpendicular to a uniform magnetic field, B, at 1.6 multiplied by 107 m/s and experiences an acceleration of 1.8 multiplied by 1013 m/s2 in the positive x direction while its velocity is in the positive z direction. Find out the magni..
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Make a drawing of this situation, and choose the best axes for x and y so that you have the least number of components.)
What is the ratio of the amplitude of the damped oscillation
For a damped oscillator with a mass of 180 g, a spring constant 58 N/m and a damping coefficient of 60g/s, what is the ratio of the amplitude of damped oscillations to the initial amplitude at the end of 26 cycles.
A steel ball of mass M is released from rest at point P. It follows a smooth curved rail to point Q and finally reaches point R with K.E. of 7J. The speed of the ball at point Q is 2MS-1 and the height between point P and the ground is 3m. Then find ..
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