Physics, 04.01.2022 21:00 sandeebassett3
4. A pitcher applies an average force of 6.2 N in the forward direction on a baseball for 0.65 seconds. The baseball’s mass is 0.145 kg. and initial velocity is zero. What momentum does the baseball have as it is released by the pitcher? How fast is the baseball going after the impulse? (10 points)
What is the momentum?
What is the velocity?
5. The catcher catches the baseball in the problem above. It takes 0.15 seconds to stop the ball. How much average force must the catcher apply during that time interval? (Ignore air resistance.)
Answers: 2
Physics, 23.06.2019 00:10
During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.
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Physics, 23.06.2019 03:00
The stopwatch used by a student to measure velocity of a pulse in a slinky was of least count 0.1 second. he stops the stopwatch when a pulse has made 3 journeys from one end to the other of the slinky. he finds the seconds hand to be at 52nd division. calculate the correct time noted by him.
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Physics, 23.06.2019 03:50
For most stars, what does a higher temperature tend to to with? a lower luminosity a higher luminositya red color none of the above
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4. A pitcher applies an average force of 6.2 N in the forward direction on a baseball for 0.65 secon...
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