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1. A particular heat engine has a mechanical power output of 6.00 kW and an efficiency of 28.0%. The engine expels 8.70 103 J of exhaust energy in each cycle.
(a) Find the energy taken in during each cycle.
kJ (b) Find the time interval for each cycle.
s
The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. Evaluate at what height above the surface of the earth does the balloon have a speed of 7.00 m/s? Enter a number.
An electric field of 8.60 x 107 V/m is desired between two parallel plates, each of area 35.0 cm2 and separated by 2.45 mm of air. What charge must be on each plate.
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River Pascal with a volume flow rate of 3.3×10^5 joins with River Archimedes, that carries 1.09×106 , to form the Bernoulli River. The Bernoulli River is 120 wide and 20 deep.
Express your answers using two significant figures. Enter the x and y coordinates of the charge separated by a comma.
Find out vertical and horizontal components
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The specific heat of water is 4186 J/kg•K. The latent heat of fusion is 333 kJ/kg. The density of water is 1.00 g/cm3.
A thin flat plate is installed in a water tunnel as a splitter. The plate is 0.3 m long and 1 m wide. The free stream speed is 1.60 m/s. laminar boundary layers form on both sides of the plate. The boundary-layer velocity profile is approximated as p..
What is the horizontal distance the airplane engine falls. find out the time that was recorded on Earth.
A 1070-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
How much charge is applied to each of the cylinders.
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