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The paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 39.86 m, y = 16.41 m, and t = 2.68 s. If the ball was dropped from a height of h = 51.64 m, determinethe initial velocity of the rock, the x-component and the y-component and the velocity of the rock at the time of the collision with the ball the x-componentand the y-component.
An engine has a maximum theoretical efficiency of 45%. If the temperature difference between the input, what is the exhaust temperature
An electric field of 8.60 x 107 V/m is desired between two parallel plates, each of area 35.0 cm2 and separated by 2.45 mm of air. What charge must be on each plate.
A 56.7-µF capacitor is connected to a generator operating at a low frequency. The rms voltage of the generator is 3.88 V and is constant. at what frequency will the fuse burn out
An airplane flying horizontally 3600 ft above the ground at 120mi/hh, drops relief aid on the ground. Resolve the angle between the vertical and the line joining plane and target at the instant when he package is released.
a solid, uniform sphere (r=20 cm, density= 850 kg/m cubed) is attached by a massless cable to the ceiling of a room, find the apparent weight (the reading on the scale) when the cable tension is
The 500[m] Short Track speed skating Olympic world record is 39:937[sec] held by American JR Celski. Calculate JR's average speed in [miles=hr] during his record- setting performance.
An industrial flywheel with a moment of inertia of 445kg?m2 rotates with a speed of 6500rpm. How much work is required to bring the flywheel to rest
A 51kg woman runs up a flight of stairs in 5.0s. Her net upward displacement is 5.0m. Approximately what average power did the woman exert while she was running
Two 3.50g beads (point charges) are hanging on threads and repel each other after being equally charged. What is the charge on each bead
Given a saturation vapor pressure of 57mb, and relative humidity of 50%, find the temperature of the Lifted Condensation Level (LCL).
The wavelength associated with the cutoff frequency for silver is 325 nm. Find the maximum kinetic energy of electrons ejected from a silver surface
A 0.4 kg tennis ball is dropped from rest at a height of 3.6 m onto a hard floor. Over what time does the force act in bringing the ball to rest
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