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At a given point above the surface of Earth, the gravitational acceleration is equal to 7.8 m/s2. At what speed could a satellite be in orbit at this point?
A 3.0m long rigid beam with a mass of 130kg is supported at each end. How much upward force does each support exert on the beam
A block of mass 10 kg rests on a horizontal surface. The coefficient of sliding friction is 0.1. What is the mass of the pulley if it is a solid cylinder
Water flows at 0.25{\rm L}/{\rm s} through a 12-m-long garden hose 2.0{\rm cm} in diameter that is lying flat on the ground. find the gauge pressure of the water where it enters the hose
A drum of chemical waste has a lid with a radius of 35.0 cm. To open the thing, a torque of 367Nm is required. With what force must you work on the thing
Calculate the energy in of a photon of radiation. A projectile is fired straight upward at 141 m/s. How fast is it moving at the the top of its trajectory? assume it is launched upward at 45 degrees about the horizontal plane. How fast is it moving..
Helium forms a solid at low temperatures and high pressures. To maintain the order present in a solid, each atom must remain at its assigned position, Find the uncertainty in momentum of the helium atom
A crate of mass 46 kg is pushed across a level floor by a person. what is the work done by the person
A 2.41 kg block and a 4.82 kg block are initially at rest on a frictionless, horizontal surface, with a compressed spring of negligible mass between them. How much does the kinetic energy of the system increase
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, evaluate how much heat is required? J
Four particles with masses 4 kg, 2 kg, 4 kg, and 2 kg are associated by rigid rods of negligible mass. The origin is centered on the mass in the lower left corner, and all the particles are located in Quadrant 1. The rectangle is 5 m wide and 4 m ..
This is a two part question. Ron runs west for 30 minutes at a speed of 8 mi/h. What is the total distance that Ron has run
It is desired to magnify reading material by a factor of 3.0× when a book is placed 8.5cm behind a lens, determine the power of the lens in diopters
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