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A billiard ball moving at 5.80 m/s strikes a stationary ball of the same mass. After the collision, the first ball moves at 5.21 m/s, at an angle of 26.0 with respect to the original line of motion. (Enter the direction with respect to the original line of motion. Include the sign of your answer. Consider the sign of the first ball's angle.)
(a) Find the velocity (magnitude and direction) of the second ball after collision. m/s °
(b) Was the collision inelastic or elastic? inelastic elastic
A merry-go-round rotates at 5 rpm and is shaped like a disc with a radius of 3 m and a mass of 100kg. what will be the new rotational speed
A potential difference of 87mV exists between the inner and outer surfaces of the cell membrane. The inner surface is negative relative to outer surface. How much work is required to eject a positive sodium ion (Na+) from the interior of the cell.
What is the terminal speed for an 79 skier going down a 36 snow-covered slope on wooden skis = 0.060? Assume that the skier is 1.8 m tall and 0.50 m wide.
In a crystal an electron is confined to a cubical region of length 0.5nm on a side. estimate the minimum allowed KE of the electron
An electric field of 7.85 10^5 V/m is desired between two parallel plates, each of area 42.0 cm2 and separated by 2.45 mm of air. What charge must be on each plate.
The wind exerts a force of 325N north on a sailboat, while the water exerts a force of 425 N west on the sailboat. Find out the magnitude and direction of the net force on sailboat.
A steel ball bearing 7.0 mm in diameter is dropped into a cylinder of glycerin. What is the terminal velocity of the ball bearing
A 6 cm diameter conducting loop with resistance of 10m\Omega is placed perpindicular to a variable magnetic field B. Determine the current and its direction induced in the loop
The load and the spring are taken down. Two people pull in opposite directions on the ends of the spring, each with a force of 206 N. Find the length of the spring in this situation
the 15,000kg boxcar A is coasting freely at 1.5 m/s on the horizontal track when it encounters tank car B having a mass of 12,000kg and coasting at .75 m/s if the cars meet and couple together
When two point charges are a distance R apart, their potential energy is -2.00 J. How far (in terms of R) should they be from each other
a projectile is fired with an initial velocity of 35 m/s at an angle of 30 degrees above horizontal of a 30 feet tall building. find the velocity of the projectile at the ground
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