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A soccer player kicks the ball toward a goal that is 27.0 m in front of him. The ball leaves his foot at a speed of 19.3 m/s and an angle of 32.4 degrees above the ground. Find the speed of the ball when the goalie catches it in front of the net. (note: the answer is not 19.3 m/s)
A current of 0.307 A through your chest can send your heart into fibrillation, ruining the normal rhythm of heartbeat and disrupting the flow of blood (and thus oxygen) to your brain.
q. two spherical conductors are connected by a long conducting wire and a total charge of 20.0 muc is placed on this
A particle has a charge of +2.3 ?C and moves from point A to point B, a distance of 0.13 m. The particle experiences a constant electric force, and its motion is along the line of action of the force.
a solid aluminum ingot weighs 89n in the air. the ignot is suspended from a rope and totally immersed inn water. what is the tension in the rope
An optometrist has a choice to give a pacient either regular glasses or contact lenses to correct nearsightedness. Usually, regular glasses sit a few centimeters in front of the eye and contact lenses right on the eye. What do you think, the power..
Imagine that we define the rear end of a train 120 m long to long to define the origin X'=0 in the train frame and we define a certain track signal light to define the origin X=0 in the track frame. Where does this event occur in the train frame
Determine the tension in an elevator cable if the 2000 kg elevator is accelerating upward with an acceleration of 1.8 m/s^2
4.10g of nitrogen gas at 20.0 C and an initial pressure of 2.70 atm undergo an isobaric expansion until the volume has tripled. The gas pressure is then decreased at constant volume until the original temperature is reached. What is the gas pressur..
A runner performs a standing hamstring curl in 1.5 seconds with the mass of the cuff weight and the lower leg 5 kg, How much mechanical work does the runner preform
One end of a metal rod, which is insulated from the environment, has a length of 0.30 m and cross-sectional area 2.00 x 10-5 m2, Calculate the thermal conductivity K of the material in the rod
in a interference experiment d 4mm l 1m the second maximum n 2 appears on the screen at a distance 4mm from the
A 3.42 g plastic bead charged to -3.61 nC and a 6.84 g glass bead charged to +7.22 nC are 5.26 cm apart, What is the acceleration (in m/s/s) of the plastic bead
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