Apitcher throws a 0.140 kg baseball, and it approaches the bat at a speed of 35.0 m/s. the bat does wnc = 75.0 j of work on the ball in hitting it. ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above the point of impact.(answer in m/s)
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Physics, 21.06.2019 17:00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 22.06.2019 04:00
Acompound machine is also called a machine. a. force b. simple c. complex d. directional
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Physics, 22.06.2019 17:30
Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.
Answers: 1
Apitcher throws a 0.140 kg baseball, and it approaches the bat at a speed of 35.0 m/s. the bat does...
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