Physics, 09.10.2019 22:00 dariusardelean8700
Acar moving in a straight line starts at x = 0 at t = 0 . it passes the point x = 30.0 m with a speed of 10.0 m/s at t = 3.00 s . it passes the point x = 375 m with a speed of 50.0 m/s at t = 20.0 s . find the average velocity between t = 3.00 s and t = 20.0 s . express your answer with the appropriate units.
find the average acceleration between t = 3.00 s and t = 20.0 s .
express your answer with the appropriate units.
Answers: 1
Physics, 22.06.2019 09:40
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.
Answers: 1
Physics, 22.06.2019 23:30
Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?
Answers: 1
Physics, 23.06.2019 00:00
You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?
Answers: 3
Acar moving in a straight line starts at x = 0 at t = 0 . it passes the point x = 30.0 m with a spee...
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