Physics, 13.04.2021 16:20, darlene1283
Q7. A 2kg ball is released from a height of 20m.
What is it velocity when its height has decreased to 5
m?β
Answers: 1
Physics, 21.06.2019 16:30, smelcher3900
Matt is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down, what is his speed?
Answers: 2
Physics, 21.06.2019 21:20, mmaglaya1
Which of the following explains why it took so long for the public to accept the negative health effects of smoking? a)people were waiting for counter reasons, and those were presented. b)scientists had not completely finalized their results, which took 30 years. c)cigarettes were cheaply available and media channels were very inefficient. d)cigarette manufacturers were trying hard to bring an alternative into the market
Answers: 3
Physics, 22.06.2019 17:40, sosaucyy
Emmy kicks a soccer ball up at an angle of 45Β° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive β and βdirections, respectively, and use β10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Q7. A 2kg ball is released from a height of 20m.
What is it velocity when its height has decreased...
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