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Ball 1, with a mass of 130g and traveling at 14m/s, collides head on with ball 2, which has a mass of 310g and is initially at rest.
A) What are the final velocities of each ball if the collision is perfectly elastic?
B) What are the final velocities of each ball if the collision is perfectly inelastic?
The Sun revolves around the center of the Milky Way Galaxy at a distance of about 30,000 light-years from the center, how many stars would there be in our Galaxy
A(n) 19_kg object floating in water has 0.24 of its volume above the surface of the water. What is the volume of the object
A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, Compute the time it takes for the car to come to rest
It walks 2.1 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find out how far the dog is then from the shore.
A violinist places her finger so that the vibrating section of a 1.20 g/m string has a length of 40.0 cm, then she draws her bow across it. A listener nearby in a 20 ^circ {rm C} room hears a note with the wavelength of 30.0 cm. What is the tensio..
A ship is floating on a lake. Its hold is the interior space beneath its deck; the hold is empty and is open to the atmosphere. What volume of water per second leaks into the ship
A ball rolls down a hill 100 m. The hill is inclined 60 degrees. what is the final rotational speed of the ball
In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 147 N/C downward at an altitude of 250 m, Calculate the volume charge density of the atmosphere
We want to design a freeway off ramp that has a radius appropriate for the posted speed. What is the radius of the curved exit ramp such that the car does not skid off the ramp
A parallel combination of a 1.11-?F capacitor and a 2.89-?F one is connected in series to a 4.65-?F capacitor. compute the charge of each capacitor
Light from an argon laser strikes a diffraction grating that has 5 310 grooves per centimeter. calculate vthe wavelength of the laser light
Water flowing through a hose at 4.0 m/s fills a 800L child's wading pool in 7.0min. What is the diameter in cm of the hose
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