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A baseball is thrown directly upward at time t=0 and is caught again at time t=5s. Assume that air resistance is so small that it can be ignored and that the zero point of gravitational potential energy is located at the position at which the ball leaves the thrower's hand.
Based on the graph of kinetic energy given (gray curve in the graphing window), sketch a graph of the baseball's gravitational potential energy.
Two ants race across a table 74 cm long. One travels at4.64 cm/s and the other at 3.99999 cm/s. while first one crosses the finish line, how far behind is the second one? Answer in units of cm.
A heavy piece of machinery is raised by sliding it a distance d = 15.0 m along a plank oriented at angle ? = 30° to the horizontal, How far is it moved vertically and horizontally
How many electrons must be removed from each of two 4.4-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
What is the speed of the block while the spring is till now compressed by xf=0.14m.
A hunter aims directly at a target (on the same level) 113 m away. If the bullet leaves the gun at a speed of 255 m/s, by how much will it miss the aim.
High-voltage power lines are a familiar sight throughout the country. What is the resistance of ten kilometers of this wire
What would be the equilibrium temperature when a 271 g block of copper at 280°C is placed in a 169 g aluminum calorimeter cup containing 817 g of water at 11.5°C.
Which vector has the largest x component and y component
A catcher stops a ball traveling at 28.0 m/s in a distance of 55.30 cm and feels a force of 313 N against his glove. What is the mass of the ball.
A doubly charged ion is accelerated to an energy of 31.5 keV by the electric field, What is the electric field strength between the plates in V/m
A 51.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 ? 10-8, What must be the diameter of the wire
The top of her head is 0.12m above her eyes. What is the height of the shortest mirror in which she can see her entire image? Expalin how far above the floor should the bottom edge of the mirror be placed?
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