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A ball is thrown at a launching angle of 52 degrees above the horizontal from one meter above the ground, with a velocity of 18 m/s. What is the highest barrier the ball can clear?
You want to design an oval racetrack such that 3200 lb racecars can round the turns of radius 1000 ft at 103 mi/h without the aid of friction. Find the banking angle necessary for the racecars
A bowling ball (mass = 6.4 kg, radius = 0.11 m) and a billiard ball (mass = 0.36 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force
A photoelectric experiment uses 266nm light and a silver target. Find the maximum kinetic energy of the photoelectrons.
a train moving with constant velocity travels 170 m north in 12 s and an undetermined distance to the west. the speed
Two point charges of magnitude 4.0 μC and -4.0 μC are situated along the x-axis at x1 = 2.0 m and x2 = -2.0 m, respectively. What is the electric potential at the origin of the xy-coordinate system?
The eye is most sensitive to light having a frequency of 5.45 1014 Hz, which is in the green–yellow region of the visible electromagnetic spectrum. What is the wavelength of this light? m
If the pressure of the 1.2-cm3 volume is reduced to 1.2 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
Early underwater exploration was conducted with a diving bell. Acylindrical diving bell 3.0 m in diameter and 4.0 m tall with thebottom open is submerged to a depth of 220 m in the ocean. How high does the sea water rise in the bellat this depth
The pickup coil in an electric guitar contains 10,000 turnsand has a diameter of 2.1 mm. When thepickup coil is very close to a guitar string, there is a field ofmagnitude B = 0.09 T in thecoil. If this steel string is vibrating at a frequency of2..
A 10-A current flows for two minutes. How much charge has passed through this circuit
a large rectangular tub is filled to a depth of 2.60 m with olive oil, which has density 915 kg/m^3. find the force of air pressure on the surface of the oil
Calculate the de Broglie wavelength ? of an electron with energy EF in sodium, and compare the value with the atomic separation R in sodium
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