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The space shuttle travels in orbit at 23,450 km/hr. During the time you talk from mission control to one os the astronaunts the shuttle travels at 820 km. How long were you talking to the astronaut?
question1protons and electrons can be given extremely high energies in particle accelerators. what is wavelength in
The gravitational acceleration on the surface of Mercury is 0.38 times that of Earth. What is the ratio of the density of Mars to that of Earth
A motorcyclist is able to ride on the vertical wall of a bowl- shaped track . his weight is counteracted by the friction of the wall on the tires. what force increase or decrease if he rides faster.
A small piece of Styrofoam packing material is dropped from a height of 1.50 m above the ground. Until it reaches terminal speed, magnitude of its acceleration is given by a = g - bv. After falling 0.40 m, the styrofoam effectively reaches its ter..
a small object a electrically charged creates an electric field. at a point p located 0.250 directly north of a the
A helium-neon laser of the type often found in physicslaboratories has a beam power of 7.00 mW at a wavelength of 633 nm. Calculate the intensity of the focused beam
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.80 x 1010 m. Assume that the sun radiates uniformly in all directions.
An electron traveling at 745 m/s enters a1.7 T magnetic field. The angle between the velocity and the field is 88 degree. Evaluate the radius of the resulting circular path
Estimate the speed of the water just before striking the turbine blades (overlook air resistance).
A particle of mass m is located in 3-dimensional space with gravity acting on it in the vertical direction. Write the Lagrangian, the equations of motion, and all conserved quantities including energy if they exist
A suspicious-looking manruns as fast as he can along a moving sidewalk from one end to theother, taking 3.50 s. Then security agentsappear and the man runs as fast as he can back along the sidewalk to his starting point, taking 11.0 s.
How many energy is consumed by a 1.10kW hair dryer used for 11.0min and a 10.0W night light left on for 11.0hr
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