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In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.22m. The mugslides off the counter and strikes the floor 1.40m from the base ofthe counter. (a) With what velocity did the mug leave the counter?(b) What was the direction of the mug's velocity just before it hitthe floor?
in a tape recorder the magnetic tape moves at a constant linear speed of 3.51 cms. to maintain this constant linear
Two equal point charges of magnitude 4.0 ?C are situated along the x-axis at x1 = -2.0 m, compute the electric potential energy of this system of charges?
At the same instant that a motionless 9.6 kg ball is dropped from 27 m above the Earth's surface, a second ball, what is the velocity of the center of mass of the two-ball system
a package has mass of 200 kg is on a horizontal floor. resistance to its motion other than that due to friction is
A tuning fork of unknown frequency is noted to be higher than one marked 512 hz and lower than one marked 1000 hz. You discover resonance points at .11 m and .53 m. Using 347 m/s for speed of sound what is the frequency of the new fork.
What is Tension in the chain at the point where the chain is attached to the block? What is the tension of the chain midway up the chain? And find out the tension in the chain at the point where the chain is attached to the ceiling.
The metal plates of a TV tube are parallel and 12 mm apart. The potential difference between them is 12 kV. Find the force on an electron passing between the plates
even the best mirrors absorb or transmit some of the light incident on them. the highest-quality mirrors might reflect
Two slits are illuminated by a 390 nm light.The angle between the zeroth-order bright band at the center of the screen, how far apart is this bright band from the central peak
An engine has a hot reservoir temperature of 900 K and a cold reservoir temperature of 608 K. What is the efficiency of the engine
Find the flux of the Earth's magnetic field of magnitude 5x10^-5, through a square loop of area 10cm^2 for the following
A 75-kg piece of metal has specific heat 430 J/kg°C and is initially at 950°C. To cool it down, it is dunked into 710 kg of oil that has a temperature of 32°C and specific heat of 2700 J/kg°C. Assuming that heat flows only between the oil and the m..
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