Answers: 3
Physics, 22.06.2019 03:10, joho38
Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.
Answers: 2
Physics, 22.06.2019 10:00, squirrel6875
There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.
Answers: 1
Physics, 24.06.2019 07:00, amf14
The goal is to increase the power; therefore, it is necessary to decrease the work being done and decrease the time in which the work was completed. decrease the work being done and increase the time in which the work is completed. increase the work being done or decrease the time in which the work is completed. increase the work being done and increase the time in which the work was completed.
Answers: 1
Physics, 24.06.2019 08:50, shawntawright1
Atechnician is studying the power stroke of a four-stroke engine and determines the following: as the piston is forced down, the mixture of combustion products and air undergoes an adiabatic expansion. the engine is running at 3,200 cycles/min. the gauge pressure immediately before the expansion is 27.0 atm. the volumes of the mixture immediately before and after the expansion are 50.0 cm3 and 400 cm3, respectively (figure below). the time interval for the expansion is one-fourth the period of the cycle. the mixture behaves like an ideal diatomic gas with a specific heat ratio of 1.40. determine the average power (in kw) generated during the power stroke.
Answers: 2
an inventor makes a clock using a brass rod and a heavy mass as a pendulum. WHAT Happens when the cl...
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