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A body weighing 157 Newton is pulled over a horizontal surface with constant velocity by a constant force of magnitude 55 Newton directed 15 degree above the horizontal. Find the work done by the applied force, the force of gravity, the normal force and the force of friction when the body has traveled 2.3 meter along the surface.
A cup of water is heated with a heating coil that delivers 27.28W of heat. What is the mass of the water
What is the minimum diameter mirror on a telescope that would allow you to see details as small as 5.25 km on the moon some 384000 km away
A 2.40 kg ball is attached to an unknown spring and allowed to oscillate. When does the maximum of acceleration occur
A proton has a mass of 1.67 x 10^-27 kg and a charge of 1.60 x 10^-19 C. What is the gravitational force on a single proton at Earth's surface.
one block of mass m slides without friction on horizontal table. The block is attached to one end of a massless spring of equilibrium length L0 and spring constant k, Define the effective potential energy Veff. Sketch the U and Veff potential energ..
neglect air resistance for the following. a soccer ball is kicked from the ground into the air. when the ball is at a
Light in a transparent material (index of refraction 1.333) strikes the boundary with another transparent material (n = 1.010). compute the critical angle for total internal reflection
Ice has formed on a shallow pond, and a steady state has been reached, with the air above the ice at -3.5°C and the bottom of the pond at 4.0°C. how thick is the ice
Calculate the minimum thicknessof a soap bubble film (index of refraction1.35)that results in constructive interference in the reflected light
A certain string can withstand a maximum tension of 30 Newton without breaking. A kid ties a 250 gram stone to one end of the string. find the speed of the stone when the string breaks
When you lift a bowling ball with a force of 80.2 N, the ball accelerates upward with an acceleration a. Calculate the weight of the bowling ball
Two particles move about each other in circular orbits under the influence of gravitational forces, with period T. Prove that they collide after time T/4√2
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