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A stone is thrown vertically upward from a point on a bridge located 40 m above the water. Knowing that it strikes the water 4 s after release, determine a. speed with which the stone was thrown upward b. the speed with which the stone strikes the water.
A Carnot engine extracts 550 J of heat from a high-temperature reservoir during each cycle, compute the efficiency of the engine
an 8.000-mw laser beam emits a cylindrical beam of light 0.9000 mm in diameter. what is the rms value of the electric
a frictionless pulley which can be modeled as a0.90 kg solid cylinder with a 0.34 m radius has a rope going over it. what is the angular acceleration of the pulley
The temperature of a monatomic ideal gas with a mass per mole of 0.00750 kg/mol is 298 K. What is the mass of the gas
A car with a mass of 1500 kg is traveking directly east at a slow speed of 1.20 mph and eleastically with a smaller car of mass of 1275 kg, Calculate the momenta of the cars before the collision
A ball is thrown horizontally with a speed of Vo = 20.0 m/s from the top of a building of height h = 42.1 meters. What is the angle below the horizontal made by the velocity vector of the ball
Consider a thin, uniform rod of mass m and length L (and negligible other dimensions) lying on the x axis (from x=-L to 0). Derive a formula for the gravitational ?eld “g” at any arbitrary point x to the right of the origin (but still on the x-axi..
if i car was travling at 22.2 m/s and went to 30.5 m/s in 5.2m/s what is the cars displacement during this maneuver
A solid object of density 660 kg/m3 is placed in water. What will be the buoyant force on the object
The electric field between the plates of the velocity selector in a Bainbridge mass spectrometer is 1.27×10^5 , and the magnetic field in both regions is 0.580 T. Determine the mass number of this selenium isotope
A 7650kg iceberg with density 931 kg/m3 is afloat in seawater with density 1030 kg/m3. find the buoyant force on the iceberg
what was the cars original kinetic energy? after the car has stopped, what is the change in temperature of the brakes and wheels?
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