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A horizontal force of 20 N pulls a block of mass 3.7 kg across a level floor. The coefficient of kinetic friction between the block and the floor is ?K = 0.25. If the block begins with a speed of 3.0 m/s and is pulled for a distance of 16 m, what is the final speed of the block? Please show work.
An airtight box has a removable lid of area 1.10 multiplied by 10-2m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 0.80 multiplied by 105 Pa.
The pressure of a garden hose is 2 atmospheres. If the cross-sectional area of the hose is 4 cm^2 and the nozzle output area is .4cm^, How fast does the water leave the hose
A closed ended manometer is used to measure the pressure in a tank of gas. what is the gauge pressure (in Pa) in the tank
An object is placed 2.0 cm from a converging lens with focal length 1.5 cm. Determine the location of the final image
A 1200 kg car moving north at 27 m/s is struck by a 2165 kg car moving east at 11.0 m/s. The cars are stuck together. How fast and in what direction do they move at once after the collision.
A child pulls on a wagon handle at an angle 37° above the horizontal with a force of 45 N. what is the mass of the wagon
I just got this wrong for the third time. A u-tube manometer is used to measure the pressure of a vessel under vacuum. Assume the manometer is open to atmospheric pressure.
What is the frequency of light that has the wavelength in water of 788 nm if the refractive index for this light is 1.33.
A transformer with 1710 turns on the primary and 229 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output
Calculate the energies and wavelengths of the 3d to 2p transitions, taking into account the fine structure of both levels
The mast of a sailboat is supported at the bow and stern by stainless steel wires, the forestay and backstay, Find the tension in the backstay and the force that the mast exerts on the deck
A concrete highway curve of radius 60 m is banked at a 13.0^circ angle. What is the maximum speed with which a 1300 kg rubber-tired car can take this curve without sliding? (Take the static coefficient of friction of rubber on concrete to be 1.0.)
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