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A football is thrown with an initial upward velocity component of 12.5m/s and a horizontal velocity component of 17.0m/s.
How much time is required for the football to reach the highest point in its trajectory?
How high does it get above the ground?
How much time after it is thrown does it take to return to its original height?
How far has the football traveled horizontally from its original position?
Computing the kinetic energy, takeoff speed, and kinetic energy per kilogram.
The force component along the displacement varies with the magnitude of the displacement, Find the work done by the force in the interval
A block of mass m = 331 g is dragged with a string across a rough horizontal table. The string tension is T = 3.27 N, What is the power supplied by the force of friction
At time a grinding wheel has an angular velocity of 22. It has a constant angular acceleration of 28.0 until a circuit breaker trips at time = 1.60 . From then on, the wheel turns by an angle of 438 as it coasts to a stop at constant angular decel..
A 2100 kg car moving east at 10 m/s collides with a 3000 kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 35 ° north of east and at a speed of 5.03 m/s. Find the speed of the 3000 kg car before th..
A gasoline engine takes in 1.70×10^4J of heat and delivers 3900J of work per cycle. What mass of fuel is burned in each cycle
A viewing window in the Atlanta aquarium is 58 inches wide and 52 inches high. what is the outward force on the window
In an RLC circuit, the following three elements are connected in series: a resistor of 45.0 ?, a 21.0-mH inductor, and a 0.450-µF capacitor. Find the power factor for the RLC series circuit
q1. an air puck of mass 0.026 kg is tied to a string and authorized to revolve in a circle of radius 1.5 m on a
A clock face has negative point charges -q, -2q, -3q, · · · , -12q fixed at the positions of the corresponding numerals. The clock hands do not perturb the net field due to the point charges
A 94.07 cm-long steel string with a linear density of 1.02 g/m is under 273.01 N tension. find the wavelength of the sound wave that reaches your ear
Suppose the highway is icy and the coefficient of friction between the tires and pavement is only one-third what you found in part A. What should be maximum speed of the car so it can round the curve safely?
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