Physics, 14.10.2019 22:20 FavvBella84
A(n) 0.212 kg baseball is thrown with a speed of 18.8 m/s. it is hit straight back at the pitcher with a final speed of 21.2 m/s. what is the magnitude of the impulse delivered to the ball?
Answers: 3
Physics, 22.06.2019 12:20
Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?
Answers: 2
Physics, 22.06.2019 12:30
Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?
Answers: 1
Physics, 22.06.2019 17:00
If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.
Answers: 1
A(n) 0.212 kg baseball is thrown with a speed of 18.8 m/s. it is hit straight back at the pitcher wi...
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