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Write down the mathematical relationship between velocity (v) and time (t) for a coin tossed up into the air after it leaves the thrower's hand at t=0 with a velocity of +15.0 m/s. Assume that the positive direction is upward and the acceleration of the coin is -9.8 m/s2 .
What are changes in the object's momentum and velocity. How much work is done if the similar tension is directed parallel to the snow.
A 1.82-cm high object is placed 22.0 cm in front of a concave mirror with a 3.55-cm focal length. What is the position of the image
A nickel has a mass of about 5 grams. If all of this mass could be converted to energy, how many Hiroshima sized bombs would this be
Runner A is initially 4.6 km west of a flagpole and is running with a constant velocity of 4.8 km/h due east. What will be the distance of the two runners from the flagpole when their paths cross
A car rounds a 200 m radius curve at 10.5 m/s. If the horizontal force acting on the car is 790 N, what's the car's mass
A bullet of mass 0.0025 kg moving at 581 m/s impacts a large fixed block of wood and travels 5.40 cm before coming to rest.
A popular pastime is to see who can push an object closest to the edge of a table without its going off. what was the object's speed as you released it
A Goodyear blimp typically contains 4250 m3 of helium (He) at an absolute pressure of 1.10 x 105 Pa. What is the mass (in kg) of the helium in the blimp
Calculate the total cost ($/kWh) of electricity delivered to the grid including fuel cost and debt charge with O&M of 5% added to the total.
A ?ghter plane ?ying at constant speed 420 m/s and constant altitude 10000 m makes a turn of curvature radius 2800 m. On the ground, the plane's pilot weighs (62 kg)(9.8 m/s2) = 607.6 N. W
A 280g ball is dropped from a height of 1.6m , bounces on a hard floor, and rebounds to a height of 1.1m. What maximum force does the floor exert on the ball
A wire of resistance 9.0 is connected to a battery whose emf script e is 5.0 V and whose internal resistance is 1.0. How much energy appears in the wire as thermal energy in that time
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