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The natural state of hydrogen at a temperature of -269 degrees Celsius is a solid. The closest distance among the protons in this state is 3.75x10^-10m. What is the magnitude of the electrostatic force on a proton due to a single nearest-neighbor proton?
A stationary detector sends out a sound wave of frequency0.305 MHZ toward an approaching car. The speed of the car is 40m/s. What is the frequency of the waves reflected back to the detector
On an airplane's takeoff, the combined action of the air around the engines and wings of an airplane exerts a 8360 N force on the plane, directed upward at an angle of 56.0° above the horizontal.
a ship's horn can be heard above typical background noise if at intensity level 20 dB. what must be the power of the horn's output to achive this level at 5.0 km away
Two blocks of mass M and 3M are placed on a horizontal, frictionless surface. Find the system's original elastic potential energy
calculate the concentrations in grams per liter of 235-u 233-u and 239-pu required for criticality of infinite
Passengers riding in the Great Six Flags Air Racer are spun around a tall steel tower (see the figure). At top speed the planes fly at a 58.0o bank approximately 12.0 m from the tower. In this position the support chains make an angle of 58.0o with t..
Thermal expansion increases the length of a clock's pendulum by a fractional increase of 4.9×10-5. Under these conditions, how much error in timekeeping accumulates over 1 day
an air-spaced fabry-perot interferometer has mirror spacing 0.15 mm and mirror reflectivity r 0.99. it is used to
The balance wheel of a watch oscillates with angular amplitude 0.90? rad and period 0.68 s. Find the maximum angular speed of the wheel
The power of a certain CD player operating at 120V rms is 20.5W. determine the maximum instantaneous power
If the bullet leaves the gun at a speed of 280 m/s, by how much will it miss the target.
question1a space station is constructed in the shape of a wheel 20 in diameter with essentially all of its 5.1times105
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