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The engine delivers 160 hp to an aircraftpropeller at 2100 rev/min.
(a) How much torque does the aircraft engine provide?
N · m
(b) How much work does the engine do in one revolution of thepropeller?
J
two blocks are connected by a massless string which passes through a hole in a frictionless table. the blocks have
A dolphin leaps out of the water at the angle of 46° above the horizontal. The horizontal component of the dolphin's velocity is 9.40 m/s. Find out the magnitude of the vertical component of velocity.
An object of height 4.7 cm is placed 47 cm from a convex mirror of focal length having magnitude 39 cm. describe the properties of the image
Three identical blocks are stacked with each extending as far aspossible over the block beneath it. Find the distance Dthat the top block overhangs the bottom block if the length of eachblock is 34.6 cm.
A 68.0-kg person throws a 0.0500-kg snowball forward with a ground speed of 27.0 m/s. What are the velocities of the two people after the snowball is exchanged
Three uniform sticks, each of mass , are placed on the floor as follows: stick 1 lies along the axis from = 0 to = 2.0 , stick 2 lies along the axis from = 0 to = 2.0 , stick 3 lies along the axis from = 2.0 to =4.0 .
Calculate the total number of electrons bombarding the target of an X-ray tube operated at 100 mA for 0.1 seconds
Three polarizing filters are stacked with the polarizing axes of the second and third at 30 and 75.0, find the intensity of light emerging from each filter
Water flows from a fire truck through a hose that is 10.7 cm in diameter and has a nozzle that is 2 cm in diameter. what is the gauge pressure in the truck
A tsunami of wavelength 215 km and velocity 550 km/h travels acrossthe Pacific Ocean. how much time do they have to run to safety
A76 kg window cleaner uses a18 kg ladder that is 6.0 m long. He places one end on the ground2.9 m from a wall, rests the upper endagainst a cracked window, What is the angle of this force on the ladder
Light with a wavelength of 4.5 x10-5 cm passes through a single slit and falls on a screen 100 cm away. If the slit is 0.015 cm wide, what is the distance from the center of pattern to first dark band.
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