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Observe the trajectory of a ball tossed vertically into the air with a goal of height and caught at the same height from which it was tossed. What biomechanical principles do you observe and how do they contribute to the goal of the motion?
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
Balmer discovered the famous formula that bears his name by inspection and trial and error. See if you can discover the formula for each of the following series of wavelengths. Each formula involved an integer n, but, as in the Balmer formula, n m..
You are driving along a highway at 35.0 m/s when you hear the siren of a police car approaching you from behind, What is the speed of the police car
A 1200-kg car rolling on a horizontal surface has speed v=65km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring
A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. What is the speed of the mass when the pendulum is 45(degree) above its lowest position
a glass window pane has an area of 3.00m2 and a thickness of 0.600cm. if the temperature difference between its faces
A 4.9 kg block is initially at rest on a horizontal frictionlesssurface when a horizontal force in the positive direction ofan x axis is applied to the block. The force isgiven by (x) = (2.8- x2) N, where x is inmeters and the initial position of ..
While surveying a cave, a spelunker follows a passage 190{\rm m} straight west, find the magnitude and direction of the fourth displacement
questiona cockroach of mass m lies on the rim of a uniform disk of mass 5 m that can rotate freely about its center
Assuming that the atom was initially at rest, determine the recoil speed of the hydrogen atom when this photon is emitted
question if weight in the general population is normally distributed with an average of 160 and a standard deviation of
A 20.0-kg uniform plank is supported by the floor at one end and by a vertical rope at the other, find the magnitude of the force that the floor exerts on the plank
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