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A bumper car with mass m1 = 103 kg is moving to the right with a velocity of v1 = 5 m/s. A second bumper car with mass m2 = 81 kg is moving to the left with a velocity of v2 = -3.3 m/s. The two cars have an elastic collision. Assume the surface is frictionless.What are the final velocities of car 1 and car2 in the ground (original) reference frame?
Two very large charged parallel metal plates are 10.0 apart and produce a uniform electric field of 2.80×106 between them. How much work has the electric field done on this proton
A capacitor with parallel circular plates of radius R is discharging via a current of 20.0 A. How much displacement current is encircled by the loop
Electron acquires 5x10^-16 kinetic energy when it is accelerated by an electric field from Plate A to Plate B, what is the potential difference Vba between the two plates
A 2.9-cm-tall object is 35 cm in front of a converging lens that has a 8.8 cm focal length. Calculate the image position and height
A high-E string on a guitar has a length of 0.635 meters and a mass of 2.51E-4 kg (both of these refer only to the "speaking" section of the string). What is the tension on the string
A spaceship, traveling at 0.56c towards a stationary enemy station, What is the speed of the projectile relative to the station
Runner A is at first 6.60 km west of a flagpole and is running with a constant velocity of 6.4 km/h due east. Runner B is firstly 7.20 km east of the flagpole and is running with a constant velocity of 8.80 km/h due west.
Marathon swimmer DJ is swimming in the Atlantic Ocean. She is moving north with a velocity of 2 m/s relative to the water. What is DJ's absolute or true velocity
A potter is shaping a bowl on a potter's wheel rotating at constant angular speed. The friction force between her hands and the clay is 1.5 N total. How large is her torque on the wheel
A 12-V battery causes a current of 0.80A through a resistor, How many joules of energy does the battery lose in a minute
Four vectors A,B,C ,D and are shown (not to scale). Vector A has magnitude 23.0 and acts at an angle of 14.7 degrees with respect to the positive x axis. find the magnitude and direction of the resultant vector R
A child on a sled reaches the bottom of a hill with a velocity of 11.0, what is the magnitude of the average retarding force on the sled on the horizontal straightaway
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