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A football is kicked at ground level with a speed of 15.0 m/sat an angle of 40.0 to the playing field (horizontal).
How much later does it hit the ground?
How far downfield does it go?
if turns ratio of primary to secondary coil of transformer is 1:3 and voltage on primary coil is 10 volts. what is voltage of seconday coil
A 1960 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 22.03 s, then the motor stops. The rocket altitude 26.3 s after launch is 6641. You can ignore any effects of air resistance.
You are walking toward a plane mirror at a speed of 2.3 m/s. How fast is your image moving relative to you
A flywheel comprises a uniform circular disk with a mass of 105.0 kg and a radius of 1.0 m. It rotates with an angular velocity of 1227 rev/min. What is the initial kinetic energy of the wheel
What is the total mass of the Earth’s atmosphere? (The radius of the Earth is 6.37 x 10 6 m, and atmospheric pressure at the surface is 1.013 x10 5 N/m2 ). Think about why we can use such a simple equation to find the mass of the Earth’s atmosphere? ..
A 535 kg automobile slides across an icy street at a speed of 54.5 km/h, What is the speed of the two cars just after they collide
A kicker's extended leg is swung for 0.4 seconds in a counterclockwise direction while accelerating at 200 deg/s2. What is the angular velocity of the leg
The leader of a bicycle race is traveling with a constant velocity of +11.2 m/s and is 10.4 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.50 m/s and an acceleration of +1.20 m/s2. How much time elapses before h..
Steams flows through an adiabatic turbine with a mass flow rate of 4.5 kg/sec, 500 degrees Celsius and 6 MPa. Calculate power output from the adiabatic turbine
An engine absorbs 3,450 J of heat energy each cycle and expels 1,240 J. how much work does it do in one cycle
A 0.15 kg ball is placed in a shallow wedge with an opening angle of 150.For each contact point between the wedge and ball, find out the force exerted on the ball. Assume the system is frictionless.
A 0.45 kg object connected to a light spring with a force constant of 19.6 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
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