Physics, 30.10.2019 00:31 holasoykawaii10
It takes 15 s to raise a 1200-kg car and the supporting 300-kg hydraulic car-lift platform to a height of 2.8 m. the velocity of the lift increases uniformly from zero to its maximum value at mid-height in 7.5 s and then decreases uniformly to zero in 7.5 s. knowing that the peak power output of the hydraulic pump is 6 kw when the velocity is maximum, determine the maximum lift force provided by the pump.
Answers: 2
Physics, 22.06.2019 00:30, devaughnnorthcu1565
What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body
Answers: 1
Physics, 22.06.2019 17:40, sosaucyy
Emmy kicks a soccer ball up at an angle of 45° 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 ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.
Answers: 2
Physics, 22.06.2019 21:10, reinasuarez964
Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. intensity c. wavelength d. brightness
Answers: 2
It takes 15 s to raise a 1200-kg car and the supporting 300-kg hydraulic car-lift platform to a heig...
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