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A 25 N force at 60° is required to set a crate into motion on a floor. What is the value of the static friction?
What are the final temperatures of water and the aluminum.
A 100 kg rocket moving radially outward from Earth has a speed of 4 km/s as its engine shuts off 200 km above Earth's surface.
The atomic mass of copper is 64 g/mole, and the density of copper is 8.9 g/cm3.
A crate is sliding down a ramp that is inclined at the angle of 33° above the horizontal. The coefficient of kinetic friction between the crate and the ramp surface is 0.479. Find the acceleration of the moving crate.
What is magnitude of the breaking force
What approximations or simplifying assumptions must you make in the calculations? (Note: Some of these choices are false because they are wrong physics!)
Julie drives 100 mi to her Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 25mph and the other half at 80. On her return trip, she drives half time at 25mph and half the time at 80 mph.
Ann was reaching up to grab a box of cereal that was on top of the refrigerator. She had extended her arm as well as stood on her tip-toes to reach the box. Which primary muscle allowed Ann to extend her elbow and which 2 primary muscles allowed h..
Speedboat A negotiates a curve whose radius is 115 m. Speedboat B negotiates a curve whose radius is 194 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
what is the speed of the proton in the beam.define the spread in these values.
He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.
A worker pushes a 34 kg block 13m along a level floor at constant speed with a force directed 38° below the horizontal. If the coefficient of kinetic friction between block and floor was 0.19.
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