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A 2.36 kg mass with an initial velocity of v1 = aˆi, where a = 5.75 m/s collides with and sticks to a 2.53 kg mass with an initial velocity of v1 = bˆj, where b = ?4.8 m/s.
Find the final speed of the composite mass. Answer in units of m/s.
A small camera has a lens with focal length f=15 mm has a movable lens that can be focused on objects as close as 20 cm or as far away as infinity (relative to f). What is the optimum lens-film distance
A space station, in the form of a wheel 100m in diameter, rotates to supply an "artificial gravity" of 3.7m/s2 for persons who walk around on inner wall of the outer rim. Find out the rate of rotation of the wheel (in revolutions per minute) that ..
A typical color television draws about 2.9 A when connected to a 150 V source. What is the efiective resistance of the T.V. set
A 3.7-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,062oC is placed on top of a 2.5-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
When a voltage of 16.0 V is applied across the two ends of a cylindrical wire of length l, radius r and resistivity p, What is the electric current measured in this second wire
What will be the y-coordinate of the proton.
assume the mass of cart 1 is m1 = 234 g and the mass of cart 2 is 181 g. Calculate the energy lost in the collision
For the Atwood's machine, suppose the masses have an initial speed of v = 0.22 m/s and that m2 is moving upward. How high does m2 rise above its initial position before momentarily coming to rest, given that m1 = 3.5 kg and m2 = 3.1 kg.
A tank of water 3.0 m deep sits on a table 1m tall. A hole is located 2m from the bottom of the tank. Water flows out of hole and strikes the ground. Where does it strike the ground? Suppose incompressible, non viscous flow.
Which of these do you think would allow sound to travel fastest? Explain the answer. Give two reasons - one relating to the density of molecules and the second to the elasticity of your choice - air, water, solid wood. Confirm to specifically stat..
Suppose that a disk rotates through two revolutions in 4.2 seconds. What is its displacement in radians in this time
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the electrical repulsion that each bag exerts on the other.
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