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An 8 kilogram mass is pulled from rest up a 15o frictionless incline by a constant force of 50 Newton that is being applied parallel to the slope.
A) Determine the net force on mass?
B) Determine the speed of mass after it has been moved a distance of 20 meter?
My flashlight beam makes an angle of 60° with the surface of the water before it enters the water. what angle does the beam make with the surface
Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ?0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force between the surfac..
A tetherball leans against the smooth, frictionless post to which it is attached. The string is attached to the ball such that a line along the string passes through the center of the ball. What is the force the pole exerts on the ball
In an ultra-low-temperature experiment, a collection of sodium atoms enter a special state called a Bose-Einstein condensate in which the index of refraction is 1.57 107
The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 296 K. Determine the temperature of the well water
An archer wishes to shoot an arrow at a target at eye level a distance of 60.0 m away. what angle should the arrow make with the horizontal as it is being shot
A recording engineer works in a soundproofed room that is38.5 dB quieter than the outside. Ifthe sound intensity in the room is 1.10 x 10-10W/m2, what is the intensity outside
A sample of an unknown material weighs 260N in air and 155 N when immersed inalcohol of specific gravity 0.700. What is the volume of the material
Responding to an alarm, a 102 kilogram fireman slides down a pole to the ground floor, 3.3 meter below. Obtain the average force exerted by the pole on the fireman
23 kg of a liquid metal with a latent heat of fusion of 53.12 kJ/kg freezes while at its melting temperature of 354 °C. Calculate the change in entropy of the metal
q1. what mass in grams of steam at 100degc should be mixed with 257 g of ice at its melting point in the thermally
an amusement park ride is designed such that riders experiance a total magnitude of no more than 30mss acceleration.
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