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A 1200 kg car moving at 15.6 m/s collides with a stationary car of mass 1500 kg If the two vehicles lock together, what is their combined velocity immediately after the collision?
Each croquet ball in a set has a mass of .50kg. The green ball travels at 10.5m/s and strikes a stationary red ball. what is the final speed of the red ball after the collision
A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
question1an inkjet printer letters are built up by squirting drops of ink at a paper from a rapidly moving nozzle. the
A 10.0-g piece of Styrofoam carries a net charge of -0.700 ?C and suspended in equilibrium above the center of a large, What is the charge per unit area on the plastic sheet
A passenger on a Ferris wheel moves in a vertical circle of radius R=2.0 m with a constant speed v. Draw a free-body diagram, and find the upward force the seat applied to her at the top of the circle
A capacitor has a surface charge density of 5 micro-coulombs/m2. What is the amount of the electrical force on the point charge
A performer seated on a trapeze is swinging back and forth with a period of 8.85 s. what will be the new period of the system
Calculate the energy of a photon required to excite a hydrogen atom from the n = 5 state to the n = 6 state
A laser emits 1.00 x10^20 photons/sec. The laser has a wavelength of 473 nm. What is the power output of the laser
Electrons in an x-ray tube are accelerated through 105 kV and directed toward a target to produce x-rays. Calculate the power of the electron beam in this tube
A rigid, well insulated container contains 10 kg of water. A motor connected to a paddle wheel is used to stir the water at a rate of 100 rad/s. How much toque does the motor need to supply (in N-m) in order for the water to heat up by 10?C in one..
A particle of mass m moves in a conservativ force field. Find the Lagrangian function and the equation of motion in cylindrical coordinates (ρ,φ,z).
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