Physics, 17.07.2019 04:20 asimms8504
In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm about the elbow. if the angular velocity of the ball about the elbow joint is 34.534.5 rad/srad/s and the ball is 1.301.30 mm from the elbow joint, what is the linear velocity of the ball?
Answers: 1
Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 Ëc. you put in a 11.7 g ice cube at 0.00 Ëc to form a system of ice + original water. the specific heat of liquid water is 4190 j/kgâąk; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
Physics, 22.06.2019 19:00
Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
Answers: 1
Physics, 22.06.2019 22:30
Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.
Answers: 1
In lacrosse, a ball is thrown from a net on the end of a stick by rotating the stick and forearm abo...
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