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Still not sure which equation to use. Asked previously and feel the answer was not right. Stone thrown vertically upward with a speed of 24 m/s. How fast is it moving when it reaches a height of 20.6m. Previously when asked I said 13.0 m. The answer was wrong. So I am wondering if the equation is wrong.
A cylinder of mass 8.0 kg rolls without slipping on a horizontal surface. At a certain instant its center of mass has a speed of 11.0 m/s. Determine the translational kinetic energy of its center of mass
The ground reaction force actin gon the long jumper is 4500N acting forward and upward at an angle of 78 degrees from horizontal. What is the vertical component of the ground reaction force
A recantangular block of wood floats in a calm lake. Show, if friction is ignored, determine an equation for the force constant
A hand-pumped water gun is held level at a height of 0.84 m above the ground and fired. Find the gauge pressure of the water gun's reservoir
Several vectors in the x-y plane are shown in the figure with their tails at the origin of the coordinate system and with a label at their heads
During an earthquake, the top of a building oscillates with an amplitude of 30cm at 1.4Hz. What is the maximum acceleration of the top of the building
A sprinter running the 100 m dash has a constant acceleration of 2.8 m/s2 for the first 4.1 seconds of the race, when he reaches his top speed, and then continues to run at that speed for the rest of the race. How long does it the sprinter to run t..
The pattern was recorded by using a neutron detector to measure the neutron internsity at different positions. determine how far the detector was behind the slits
Pretend you foolishly play your keyboard instrument under water where the speed of sound is 1500.0m/s
A mass m1 = 1 kg rests on top of a mass m2 = 5 kg which is attached to a spring (k = 50 N/m), Determine the maximum amplitude of the motion such that the top mass does not slip
A pen contains a spring with a spring constant of 251 N/m. How much work is done by the spring force to ready the pen for writing
A spherical mirror is to be used to form an image, four times as tall as an object, on a screen positioned 4.6 m from the mirror. Describe the type of mirror required
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