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An athlete executing a long jump leaves the ground at a 20° angle and travels 6.30 m. The takeoff speed is 9.8 m/s. If this speed were increased by just 3.0%, how much longer would the jump be (in meters)?
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.9 g, which includes fuel mass of 13.4 g. What is the average exhaust speed of the engine
An object is placed in front of a converging lens in such a position that the lens (f = 17.0 cm) creates a real image located 27.0 cm from the lens. What is the image distance of this new image
Water undergoes viscous flow through two pipes with the same pressure difference between the ends. what is the flow rate through pipe 2
An Olympic runner is at the starting gate and hears the starting gun, Using only acceleration, ai, and time, tr, write an expression for the runner's final speed, vr, when he crosses the finish line
Josh starts his sled at the top of a 2.9m -high hill that has a constant slope of 25 degrees. How far from the base of the hill does he end up
A 40 kg child sits 1.3 m away from the center of a merry-go-round. If the merry-go-round is traveling with a radial velocity of .78 rad/s, what is the centripetal force on the child
A meter stick is found to balance at the 49.7cm mark when placed on the fulcrum. When a 41g mass is attached at the 23cm mark, what is the mass of the meter stick
A 290-mL spherical flask contains 0.075 mol of an ideal gas at a temperature of 345 K. What is the average force exerted on the walls
A point charge causes an electric flux of -735 N-m2/C to pass through a spherical Gaussian surface of 13.4 cm radius centered on the charge. how much flux would pass through the surface
A car travels along a straight line at a constant speed of 58.5 mi/h for a distance d and then another distance d in the same direction at another constant speed. What is the average speed for this new trip
The maximum speed of the pendulum bob in a grandfather clock is 0.45 m/s. what is the length of the pendulum
Suppose two vectors each have length 3.0 units. if the two vectors are perpendicular to each other, what is the resultant vector length
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