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1. Estimate the current at which a 1-mm-diameter nickel wire will burn out when submerged in water at atmospheric pressure. The electrical resistance of the wire is 0.129 D/m.
2. Estimate the power (W/m2) required to maintain a brass plate at !l.Te = 15°C while boiling saturated water at 1 atm. What is the power requirement if the water is pressurized to 10 atm? At what fraction of the critical heat flux is the plate operating?
A large manufacturing space with an average floor to ceiling height of 30 ft has a floor area of 5000 ft^2. The total infiltration rate for the space is estimated to be 1.5 air changes per hour. The inside design temperature and relative humidity are..
the old style heating uses steam or hot water in an radiator to heat a room in winter time. a radiator can be
a particle moves along the curve yx2 - 4m with a constant speed of 5 ms. determine the point on the curve where the
if we need to forecast the life for an element subjected to dynamic load in an internal combustion engine of a vehicle
A spherical balloon inflated sos that the volume is increasing at the rate of cubic meter/min. At what rate is the diameter increasing when the diameter is 12 m?
a car slides freely in vertical plane along a curve. it starts at a point b which is at a height h above the point a.
Using examples, illustrate the different types of adaptor needed to support sequential composition, hierarchical composition, and additive composition.
water at 15 degrees celcius flows through a nozzle that contracts from a diameter of 20cm to 2cm. the pressure at
Collar C moves along rod BA with a velocity of 3 m/s and an acceleration of .5 m/s^2 both directed from B towards A and measured relative to the the rod. At the same instant, rod AB rotates with the angular velocity and angular acceleration shown. De..
The gases assumed to have the properties of air, enter at 200°C and leave at 93°C. The overall heat transfer coefficient is 180 W/m2 · K, using the effectiveness-NTU method calculate the area of the heat exchanger.
a boiler receives a constant flow of 5000 kgh liquid water at 50 bar and 20 degrees c and it heats the flow such that
An ideal duct carries water (incompressible fluid) from a height of 10m to 20m. The pressures at the entry and exit points are at 1000 Pa and 2000 Pa respectively. Calculate exit velocity if the velocity at entry is 10 m/s.
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