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A 2000 kg car moving east at 10.0 m/scollides with a 3000 kg car moving north. The cars stick togetherand move as a unit after the collision, at an angle of 36.0° north of east and at a speed of 4.94 m/s. Find the speed of the 3000 kg car before the collision.
A heat engine takes in 1000 J of energy at 1000 K and exhausts 615 J at 200 K. What are the actual and maximum theoretical efficiencies of this heat engine
the company you work for and you love this job and want to keep it needs reliable information on the speed of its
At a distance of 7.00×10^12 m from a star, the intensity of the radiation from the star is 15.1 W/m^2. Assuming that the star radiates uniformly in all directions, what is the total power output of the star?
A crane drops a 1.0 kg steel ball onto a steel plate. The balls speed just before impact is 2.0m/s. what is the bounce back speed right after the impact
A person whose mass is m = 97.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle ? = 25.3° with the horizontal
While partying in Paris, you throw a glass of champagne off of the Eiffel Tower. how high above the ground are you
q1. a spaceship travels with a constant speed of 0.3c as it passes by the earth on its way to a distant star.a. the
Light of wavelength 580nm illuminates a diffraction grating. The second-order maximum is at angle 41.5 degrees
A thin uniform rod has a length of 0.520m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end and is stationary. What is the mass of the bug
The position of a particle moving along an x axis is given by x = 22t2 - 3.0t3, where x is in meters and t is in seconds. Determine the position, velocity, and acceleration of the particle
The photoelectric threshold wavelength of a tungsten surface is 272 nm. What is the threshold frequency of this tungsten
A 61-kg and a 97-kg skydiver jump from an airplane at an altitude of 6100 m, both falling headfirst. Calculate their terminal velocities
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