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A rescue helicopter drops a package of emergency ration to a stranded party on the ground.
If the helicopter is travelling horizontally at 40m/s at a height of 100m above the ground, what are the horizontal and vertical component of the velocity of the package just before it hits the ground?
An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes 1710 * 10^3 seconds, calculate the moon\'s radial acceleration.
A pair of slits, separated by0.150mm, is illuminated by light having a wavelength of?=586nm. What is the path difference for the two slits at the locationy
How is the principle on which the Gaussmeter is based related to the motion of the electron perpendicular to a uniform magnetic field?
If the shear stress in steel exceeds about 3.92 × 108 N/m2 , the steel ruptures. Find the shearing force necessary to shear a steel bolt 0.91 cm in diameter
a 0.190kg block of ice is placed against a horizontal compressed spring mounted on a horizontal tabletop that is 1.10m
An electron is in a certain energy state in a one-dimensional, infinite potential well from x = 0 to x = L = 200pm. What is the frequency of the photon that is emitted
what is the terminal velocity of a 6.00-kg mass object in falling with a drag force with a magnitude that depends on
After a plant or animal dies, its 14C content decreaseswith a half-life of 5730 years. what is the age of the ancient site
Blocks with masses of 3.0kg, 8.0kg and 9.0kg are lined up in a rowon a frictionless table. All three are pushed forward by a12N force applied to the 3.0kg block.
Carbon-14 dating is used to date a bone found at an archaeological excavation. If the ratio of C-14 to C-12 atoms is 3.25 x 10- 13, bow old is the bone?
The potential difference across the filament of a lamp is maintained at a constant level while equilibrium temperature is being reached. It is observed that the steady-state current in thelamp is only one-ninth of the currentdrawn by the lamp when..
A 0.12 mol of argon gas is admitted to an evacuated 45 cm3 container at 24oC. The gas then undergoes an isobaric heating to a temperature of 280oC. Evaluate what the final Volume of the gas
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