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earth's radius is 6.38x10^6 m, and it completes one revolution every day. What is the tangential speed of a person standing on the on the equator?
A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a tightly wound inner core. what is the angular speed of the spool
Consider an ideal monatomic gas of 1026 atoms. What is the internal energy of this system at 27 °C? If the temperature is raised by 1 °C, by what factor does the number of accessible states increase? What is the increase in entropy in this case?
Another particle, of mass 7.4 10-27 kg, moves along the positive x-axis with a speed of 4.0 106 m/s. (Assume that mass is conserved.) Evaluate the third particle's speed. What is the direction of motion?
Water is flowing in a cylindrical pipe of varying circular cross-sectional area, and at all points the water completely fills the pipe. What is the radius of the pipe at this point
Steam locomotives have an eff of 17% and operate with hot steam temp of 425C. A.) what is the cold temp B.) what is the max eff if the cold temp 150C
Four particles are held in place at the corners of a square with sides of length L. Each particle has a charge q and mass m. (a) What is the potential energy of the system of charges.
A certain traffic light is yellow for 2.70 s before it turns red. To come to a complete stop before reaching the intersection, what is the minimum distance you can be from the light when it turns yellow
An archer shoots an arrow toward a 300-g target that is sliding in her direction at a speed of 2.50 m/s on a smooth, slippery surface. What is the speed of the arrow after passing through the target
A spherical balloon is partially blown up and its surface area is measured. More air is then added, by what factor does the radius of the balloon change
A 50 hard-boiled egg moves on the end of a spring with force constant . It is released with an amplitude 0.300 . A damping force acts on the egg. After it oscillates for 5.00 , the amplitude of the motion has decreased to 0.100.
A compressed-air cylinder is known to fail if the pressue exceeds 100 atm. What is the pressure inside the cylinder during the fire
A monochromatic point source of light emits 5.5 W of electromagnetic power uniformly in all directions. Find the (magnitude of the) Poynting vector at a point situated at each of the following locations:
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