(give a numerical answer, 50 points) a projectile launcher is placed on the floor and pointed straight up (90 degrees), the projectile (ball) leaves the launcher 27 cm above the floor. the ball has a mass of 6.58 g. we measure the maximum height above the floor reached by the ball. we do this three times and get the following results all measured in meters.: 2.32, 2.26 and 2.37. find the speed at which the ball leaves the launcher.
Answers: 1
Physics, 22.06.2019 06:30, bluevibe
2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.
Answers: 2
Physics, 22.06.2019 11:30, alexandroperez13
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
Physics, 22.06.2019 14:10, nikki4367
Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
Answers: 3
Physics, 22.06.2019 15:30, salehabajwa101
What are the similarities & differences between a thermistor and a light dependent resistor in physics?
Answers: 1
(give a numerical answer, 50 points) a projectile launcher is placed on the floor and pointed straig...
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