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Two cars approaching each other collide and stick together after the collision. One car has a mass of 1820 kg and a speed of 30 km/h in the positive x direction. The second car has a mass of 1060 kg. After the collision they both move off with a speed of 18 km/h in a direction +37o from the x axis. What was the initial velocity of the second car?
A grindstone of a radius 4 m is firstly spinning with a radius of 8 rad/s. The angular speed is then increased to 12 rad/s over next 4.0 seconds. Suppose that the angular acceleration is constant. What is the average angular speed of grindstone.
With brakes fully applied, a 1550 kg car deccelerates from a speed of 78.0 km/hr. What is the change in the kinetic energy of the car
A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.10M, What is the time constant of the circuit
Two violin strings are tuned to the same frequency, 294 Hz. The tension in one string is then decreased by 1.5 %. What will be the beat frequency heard when the two strings are played together.
You are a professional frontier re-enactor who specializes in making lead shot. To do this you put 1.3 kg of ice into 1.3 kg of water, both at 0 C, into an insulated bucket.
A frictionless, vertical wire has two metal beads on it. The beads are held 30 cm apart by horizontal magnets, If the two beads each have a mass of 49.7 g, what is the kinetic energy of the second immediately after impact
The outside mirror on the passenger side of a car is convex and has a focal length of -7.7 m. Relative to this mirror, Find the image distance of the truck.
A 2.80x 10^2 W electric immersion heater is used to heat a cup of water. The cup is made of glass and its mass is 3x10^2 g. It contains 250g of water at 15°C.
An exoplanet of mass 7.4e26 kg orbits its parent star at an angle of inclination of 28.9 degrees. determine the period of the exoplanet in days
Three charged particles are arranged into a triangle. The charge on the particle located (4.0cm, 3.0cm) is 5nC. The charge on the particle at the origin is -3nC, and the change on the particle located at (4.0cm, 0cm) is +6nC. Determine the magnitu..
A 5.01E+4 kg space probe is traveling at a speed of 12600 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed, What is the final speed of the probe?
A woman holds a tube of lipstick 5.1 cm from a spherical mirror and notices that the image of the tube is inverted, Calculate the focal length of the mirror.
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