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A helicopter 8.20m above the ground and descending at 4.40m/s drops a package from rest (relative to the helicopter). We have chosen the positive positive direction to be upward. The package falls freely.
A) Just as it hits the ground, find the velocity of the package relative to the helicopter.
B) Just as it hits the ground, find the velocity of the helicopter relative to the package.
UV light of wavelength 211 nm falls on a silver surface whose work function is 4.74 eV. Find the maximum speed of the photoelectrons emitted from the surface
When you submerge a 1 kg gold statue into the water and measure the volume of displaced water, show that, for pure gold, the volume of water displaced will be 51.8 cm^3.
Find the speed of the car when brakes were applied.
A baseball and a bowling ball are both rolled off a level table at the same time. which will hit the ground first
Two points in a rectangular coordinate system have the coordinates (4.7, 2.5) and (-2.5, 4.7), Determine the distance between these points
A weight of 200 N is hung from a spring with a spring constant of 2500 N/m and lowered slowly. How much will the spring stretch
A point charge Q = +1.69 µC moving in a uniform magnetic field of B = 1.22 T has a velocity of v = 5.93×105 m/s that is perpendicular to the magnetic field. what is the direction of the resulting force
An atomic spectrum contains a line with a wavelength centered at 450nm, Estimate the lifetime of the excited state
What is the specific heat capacity of other substance.
The suspension system of your 1200 kg car has a natural oscillation frequency of 2.00 Hz without functioning shock absorbers. At what speed are you driving
A ray of light is incident on a flat surface of a block of cubic zirconia that is surrounded by water. obtain the angle of reflection
A 0.75?F capacitor is charged to 90V . It is then connected in series with a 35? resistor and a 150? resistor, How much energy is dissipated by the 35? resistor
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