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A vertical spring is 10.0 cm long when supporting a 20.0 kg mass, and it is 12.0 cm long when supporting a 32.0 kg mass. Assume the stretch is linear with the load.
A.) What is the length of spring with zero load?
B.) How much work would be done in stretching the spring from 10.0 cm to 15.0 cm?
A swimming pool has dimensions 32 m 11 m and a flat bottom. When the pool is filled to a depth of 2.10m with fresh water, what is the force caused by the water on the end that is 11m.
A rectangular container measuring 23 cm 51 cm 65 cm is filled with water. What is the mass of this volume of water in kilograms and grams.
Given that the radius of the Moon is roughly one-quarter that of the Earth, find the mass of the Moon in terms of the mass of the Earth
An excited electron in Na atom emits radiation at a wavelength 589nm and returns to the ground state. If the mean time for the transition is 20ns, ineherent width in the emission line.
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.10×106N , one at an angle 10.0? west of north, What is the total work done by the two tugboats on the supertanker
At t = 0, a stone is dropped from a cliff above a lake; 1.3 seconds later another stone is thrown downward from the same point with an initial speed of 31 m/s. Find the height of the cliff
A certain fuel-efficient hybrid car gets gasoline mileage of 55.0 mpg (miles per gallon). If you are driving this car in Europe and want to compare its mileage with that of other European cars, express this mileage in km/l (liter).
a small dog sits 3.0 m in front of a plane mirror. where is the dog's image in relation to the mirror
A horizontal spring-mass system has low friction, spring stiffness 150 N/m, and mass 0.4 kg. What is the maximum speed during the motion
A dedicated sports car enthusiast polishes the inside and outside surfaces of a hubcap that is a thin section of a sphere. How far is her face from the hubcap
A 0.70-kg mass attached to a vertical spring of force constant 140N/m oscillates with a maximum speed of 0.40m/s, Find the maximum magnitude of the acceleration
A train has 4 locomotives (73 tons each) and 60 coal cars (42 tons each). The train is going down a 2.4% incline, What is the mass of the entire train
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