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A juggler throws a ball from height of 0.950 m with a vertical velocity of +3.75 m/s and misses it on the way down. What is its velocity when it hits the ground?
A 2.85 kg object is held in place on an inclined plane that makes an angle of 40 degrees with the horizontal. Calculate the initial acceleration of the system
One fish leaps with an initial velocity at the water surface of 12.5m/s at an angle of 33.0 degrees above the horizontal
An oscillating block-spring system has a mechanical energy of 2.78 J, an amplitude of 6.73 cm, and a maximum speed of 4.12 m/s. find the spring constant and the mass of the block
A ball with a mass of 0.620kg is initially at rest. It is struck by a second ball having a mass of 0.405kg , What is the change in the total kinetic energy of the two balls
A 300g ball swings in a vertical circle at the end of a 1.3-m-long string. When the ball is at the bottom of the circle, the tension in the string is 12N
Some human nerve cells have a long, thin cylindrical cable (the axon) from their inputs to their outputs. Determine the resistance of the fluid in this axon
A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 4.20g bullets at 975m/s. Find the recoil speed of the hunter if he fires the rifle horizontally
A typical lightbulb in your house is rated 200 W, which means that the bulb dissipates 200 W when connected to a DC voltage of 110 V. (a) What is the current through the lightbulb? (b) If the voltage is reduced to 55 V, what is the dissipated powe..
The distance between a loudspeaker and the left ear of a listener is 1.60 m. compute the time required for sound to travel this distance if the air temperature is 20° C.
An object of mass 2 kg and charge 40 microC is moving with initial speed of 5 m/s towards a fixed point charge of 30 microC which is fixed. Find the position of the object when it comes to rest
The weight of passengers on a roller coaster increases by 51 percent as the car goes through a dip with a 39 radius of curvature.What is the car's speed at the bottom of the dip.
A nearsighted sheriff fires at a cattle rustler with his trusty six-shooter. Fortunately for the rustler, the bullet misses him and penetrates the town water tank, causing a leak. how far above the hole is the water level
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