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A soccer player takes a penalty kick 11.0m from goal. To score, she has to shoot the ball under the 2.44m high cross bar. if she kicks at 19m/s what range of launch angles will result in goal. note the ball is permitted to strike the ground before reaching the goal.
A human cannon ball is launched at 25.0 m/s at an angle of 30.0 degrees from horizontal. What is the velocity of the human after 0.540 seconds in terms of i and j
A point charge Q is trapped at the center of a thin-walled hollow conductive sphere of radius R, How much charge will collect on the inside surface of the hollow sphere
A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway, How much time is needed for the plane to clear the intersection
In an experiment conducted at room temperature, a current of 0.820 flows through a wire 2.86 in diameter. Find the magnitude of the electric field in the wire if the wire is made of tungsten
600 nm light is shined on a single slit which is 0.1mm wide, What is the width of the central maximum
An astronaut travels to Mars with a speed of 8400 m/s. After 1 month (30.0 days) of travel, as measured by clocks on Earth, how much difference is there between the Earth clock and the spaceship clock? Give your answer in seconds.
The non-constant angular acceleration of a wheel is given by a(t)=At. A=6 radians/s^3. calculate the instantaneous angular acceleration at t=1.50 seconds
A rotating wheel requires 8.00 s to rotate 28.0 revolutions. calculate the constant angular acceleration of the wheel
An ideal refrigerator does 140 J of work to remove 585 J of heat from its cold compartment during each cycle. How much heat per cycle is exhausted to the kitchen
A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.891 rad/s. Calculate the total angular momentum of the system
The archerfish hunts by dislodging an unsuspecting insect from its resting place with a stream of water expelled from the fish's mouth. Suppose the archerfish squirts water with a speed of 2.15m/s at an angle of 46.0 ^\circ above the horizontal, a..
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 28.9 m/s. Find the airplane\'s acceleration
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