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Two identical 1500 kg cars are moving perpendicular to eachother. One moves with a speed of 25m/s due north and the othermoves at 15 m/s due east. what is the toal momentum of the system?
An ideal monotonic gas is compressed at a constant pressure of 0.9 atm from 18 L to 4.5 L. Note: Atmospheric pressure is 1.013x105 Pa. By how many cubic meters is the volume reduced? What is the work done on the gas? What was the change in the intern..
A spring with spring constant k is initially compressed a distance x from its equilibrium length. After returning to its equilibrium, the spring is then stretched a distance x from that position. What is the ratio of the work that needs to be done on..
You are climbing in the High Sierra where you suddenly find yourself at the edge of a fog-shrouded cliff, how high is the cliff if the speed of sound is 330 m/s
A student sits on a swivel seat. Initially the student is at rest, holding a spinning bicycle wheel that has an angular velocity of 13.9 rad/s. Find the student's final angular velocity
A student hits the cork sharply with her fist and the bottom of the bottle breaks. The student's fist has a mass of m = 0.480kg and moves downward at a speed of vi = 5.00m/s. What is the force that the fist exerts on the top of the bottle
A projectile is fired with an initial speed of 65.1 at an angle of 37.6 above the horizontal on a long flat firing range. Determine the maximum height reached by the projectile.
A 0.500 kg solid mass is totally submerged in water while suspended from a spring balance. Calculate the volume of the solid mass
In many locations, such as Lake Washington in Seattle, floating bridges are preferable to conventional bridges. Such a bridge can be constructed out of concrete pontoons, which are essentially concrete boxes filled with air, Styrofoam, or another ..
Suppose you're skiing up a 20m tall slope at the indicated angle of inclination. What minimum initial speed must you have at the bottom to just make it to the top
While looking at her image in a cosmetic mirror, Dina notes that her face is highly magnified when she is close to the mirror, but as she backs away from the mirror, her image first becomes blurry, then disappears when she is about 24.0 cm from th..
A vacuum diode consists of a cylindrical cathode of radius 0.05cm, mounted coaxially within a cylindrical anode 0.45 cm in radius. Find its speed when it strikes the anode
A 86 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 380N. What is the final speed of the crate
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