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A model car is propelled by a cylinder of carbon dioxide gas. The cylinder emits gas at a rate of 4.5 grams/second with an exit speed of 80.0 m/s. The car has a mass of 400 grams, including the CO2 cylinder. Starting from rest, what is the car's initial acceleration?
The nucleus 124 55 Cs has a half-life of 30.8 s and a molar mass of 124 g. What is the initial activity (decay rate) of the sample
Electrons are ejected from a metallic surface with speeds ranging up to 4.5 105 m/s when light with a wavelength of ? = 625 nm is used. What is the work function of the surface
calculate the work done by a person pulling a 50kg sled, at constant velocity, along the snow at an angle of 50 degrees from vertical for 5m
The partnership distributed $5,000 cash to Marilyn. Her share of partnership liabilities on the last day of the partnership year was $4,000. Compute Marilyn’s adjusted basis (outside basis) for her partnership interest at year-end.
Each summer along the Oregon coast there is a contest for archers. People line the beaches and wait for a low-flying airplane to pass overhead loaded with goodies.
Find out the magnitude and direction of the rockets acceleration. Give the direction as an angle above the horizonal.
What is the wavelength of the spectral line? B) Assuming this line is from a transition from level n1 = 3 to level n2 = 2 (i.e. the longest wavelength Balmer series transition), what do you calculate for the value of Rydberg constant.
A stereo speaker has a surface area of 0.043 m^2. The acoustic power output of the speaker is 1.7 W. Calculate the intensity of the speaker
A cylinder with a hole bored completely through it is resting upright in the water. The inner radius is 1 m, The outer radius is 2 m. How long is the part of cylinder above water
A rubber ball is dropped from a distance of 1.40 m above ground and bounces to 60% of its original height. how long is the ball in contact with the ground
Two lenses, one converging with focal length 20.5 cm and one diverging with focal length - 12.0cm , are placed 25.0 cm apart. Determine the magnification of the final image formed
A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hours to go around the earth. How far above the surface of the earth is this orbit
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