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A ball of mass m is dropped from a height h above the ground.
a. Ignore air resistance, calculate the speed of the ball when it is at height y above the ground.
b. Calculate the speed of the ball at height y if at the instant of release it already has an initial speed of vo.
An 80kg man falls our of a 1.5m tree starting at 0 speed. How much potential energy does he start with in the tree, Calculate the grounds force now converted to pounds
A model rocket fired vertically from the ground ascends with a vertical acceleration of 4.0 m/s2 for 5.8 s, What is the maximum altitude reached
A mass attached to a spring vibrates 15 times in 23.13 seconds. What is the linear frequency (in Hertz) of the mass
In a certain region of space, a particle is described by the wave function ?(x) = Cxe^(-bx) where c and b are real constants. find the energy of the particle
questioncora lies in a tanning bed getting a tan. suppose that as 0.79 m2 of her skin is exposed to the light from the
If you stand on a bathroom scale, the spring inside the scale compresses 0.80mm , and it tells you your weight is 680N. what does the scale read at its peak
A new block is attached to the first block. The new block is made of a different material and has a coefficient of static friction ? = 0.73. (When there is no friction the acceleration of the first block is 4.29 m/s2)
question a 0.900-v potential difference is maintained across a 1.50-m length of tungsten wire that has a
A cook puts 8.20 g of water in a 2.00-L pressure cooker that is then warmed to 470°C. What is the pressure inside the container
A car with a mass of 1500 kg is traveking directly east at a slow speed of 1.20 mph and eleastically with a smaller car of mass of 1275 kg, Calculate the momenta of the cars before the collision
At what energy does an electron become "relativistic"? Consider electrons with kinetic energies of 50 eV, 50 keV, and 50 MeV. When is it important to use the relativistic formulas
A 1.5 kg mass attached it spring with a force constant of 20.0 N/m oscillates in horizontal, frictionless track. At t=0, Determine the total energy of the oscillating system
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