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A gear set has a module of 5mm, a 20° pressure angle, and a 24-tooth case-iron spur pinion driving a 48-tooth case-iron gear. The pinion is to rotate at 50 rev/min. What horsepower input can be used with this gear set if the contact stress is limited to 690 MPa and F=60mm? Use the first approximation equation for contact stress, not the AGMA equations.
A brake is applied to a flywheel rotating at an angular velocity of 100 rad/s. If the angular velocity reduces to 20 rad/s in 15s, find (a) the deceleration produced by the brake and (b) the total angle the flywheel rotates in the 15s period.
what were the flaws in your experiment? what sort of reproducibility does your experimental procedure yield? 4. how
A bead of mass m slides without friction along a wire which has the shape of a parabola my= Ax^2 with its axis vertical in the Earth’s gravitational field g. Find the Lagrangian, taking as generalized coordinate the horizontal displacement x.
steam enters a turbine at 12 mpa 550degc and 60 ms and leaves at 20 kpa and 130 ms with a moisture content of 5
a garden hose is open at one end and capped closed at the other. a swimmer in an above-ground pool fills the hose with
a steam rankine cycle operates between pressure limits of 2500 psia in the boiler and 1psia in the condenser. the
the compound beam is fixed at a and supported by a rocker at b and c. there are hinges pins at d and e. take f 14kn.
Find the turbine's (b) isentropic efficiency (%), (c) reversible work (kJ/kg), (d) irreversibility(kJ/kg), and (e) exergy destruction (kJ/kg). (f) Draw a T-s diagram of the process
For a shaft of 1045 steel rotating at 1,200 rpm and under a transverse load, what is the maximum stress amplitude possible for the lifetime of 1 year of continuous operation?
a spring is initially compressed from a free length of 8in to a length of 6in making a net initial compression of 2in.
air within a gas-piston assembly and initially at stp 1atm 300k undergoes a thermodynamic cycle consisting of the
an air conditioner operating at steady state maintains a dwelling at 20 degrees celsius on a day when the outside
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