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A mass attached to a spring is lifted 10cm and then let go at which point the mass bobs up and down completing 4 oscillations in 10 sec. When does the mass first reach its maximum speed and what is that speed?
A blackbody will emit less energy at higher frequencies.
How many kilograms of water at 100.0 C could be converted to steam by the addition of 1.13 x 10^7 joules of thermal energy.
One of the most powerful cranes in the world operates in Switzerland. It can slowly raise a load of M = 5639.0 tonnes to a height of h = 14.0 m (1 tonne = 1000 kg). How much work is done by the crane
a 1.00 x 10^4 kg railroad car is rolling at 6 meters per sec. What is the cars speed just after gravel is loaded
A string is attached to a cube of wood with a volume V=100cm^3 and is placed in fresh water with density 1000 kg/m^3, what is the density of the wood
A 100 kg running back carries the ball forward with a speed of 9 m/s. He is hit head on in the air at the goal line by a 130 kg defensive back running in the opposite direction at 7 m/s
A 2.00 kg block is pushed against a spring with negligible mass and force constant k=400 N/m, compressing it 0.220m. When the block is released, it moves along a frictionless,
Calculate the ratio of the drag force on a jet flying at 1140 km/h at an altitude of 10 km to the drag force on a prop-driven transport flying at half that speed and altitude.
Calcium carbonate, CaCo3, can be in two different solid phases, calcite or aragonite. Which phase is more stable at room temp? At what pressure are both phases stable?
The atomic mass of ammonia is 17 atomic mass units. What is the atomic mass of nitrogen if a molecule of ammonia consists of one atom of nitrogen and three atoms of hydrogen?
a piston of mass m can move without friction inside a long vertical cylinder sealed from the bottom and opened from the
What is the wavelength of the second laser that would place its second maximum at the same location as the fourth minimum of the first laser, if = 0.300 ?
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