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A spring stiffness k= 500 n/m is mounted against a 10 kg block. if the block is subjected to a force of 1 KN determine the velocity of the block at s=0.3 m when s=0, the block is at rest and the spring is uncompressed. The coefficient of fricktion is 0.2 . Use work and energy principle to find velocity.
While jogging on the beach (it's a warm summer day, about 30 deg C) a high-speed jet flies overhead. You guesstimate it's an altitude of about 3500 m, and count off about 5 s before you hear it. Estimate the speed and Mach number of the jet.
A rocket nozzle has a chamber pressure of 20 Bar (2 MPa) and a chamber temperature of 2750 K. The rocket is designed to operate isentropically at 12,500 m altitude. Note that the pressure at 12,500 m can be estimated using this equation P/P0 = exp [-..
the pressure of 200 kgs of water is to be increased from 1 atm to 4 mpa. the water enters through a 20-cm-diameter pipe
some hypothetical metal has the simple cubic crystal structure i.e. atoms positioned at each of the eight corners with
an air otto cycle has compression ratio of 8. at the beginning or the compression process pressure is 1 bar.
A six-cylinder, four-stroke, 4.5-L compression-ignition engine operates on the ideal diesel cycle with a compression ratio of 17. The air is at 95 kPa and 55oC at the beginning of the compression process and the engine speed is 2000 rpm. The engine u..
the amount of fuel introduced into a spark ignition engine is used in part to control the power produced by the engine.
Determine the average luminous exitance of the opaque interior surfaces of the room - what is the reflected component at this point?
1000 kj of heat are added to 10 kg of saturated liquid ethanol at 78.4degc and 1 atm. at these conditions the latent
describe on your own words the three strengthen mechanism for metals i.e. grain size reduction solid solution
thermopane window consists of two 6 -mm thick glasses separated by a stagnant air space of thickness 6 mm. the thermal
milk is pasteurized if it is heated to 63c for 30 min but if it is heated to 74c it only needs 15 seconds for the same
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