Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. If the Carnot absorption refrigeration coefficient of performance of a new refrigeration unit is 4.20 and the environmental and generator temperatures are 70.0°F and 300.°F, respectively, determine the cooling (evaporator) temperature.
2. A new household refrigerator-freezer combination unit is designed with a dual-evaporator system. The freezer compartment is at -20.0°C and the refrigerator compartment is at 4.00°C.
The outlet of the condenser is at 28.0°C. The cooling capacities of both the refrigeration and the freezer compartments are to be 400. kJ/h each. The system uses refrigerant R-134a with a compressor isentropic efficiency of 87.0%. Determine
(a) the coefficient of performance for this design and
(b) the mass flow rate of refrigerant required.
A small square loop carries a 48A current. The on-axis magnetic field strength 43cm from the loop is 6.8nT
Calculate the effective value of g, the acceleration of gravity, at 4900m above the Earth's surface
An astronaut in his space suit and witha propulsion unit (empty of its gas propellant) strapped to hisback has a mass of 147 kg. During a space-walk, the unit, which hasbeen filled with propellant gas, ejects some gas with a velocity of+31.0 m/s.
A spherical shell of radius R = 8.0 cm has a total charge Q = - 900nC uniformly distributed on its surface, Write the net electric field at the point P in unit vector notation
A car travelling at 15 m/s passes a runner and immediately starts breaking at a constant acceleration of -2 m/s2, What is their velocity when they meet
A 66 kilogram skier coasts up as now-covered hill that makes an angle of 25 degree with the horizontal. The initial speed of the skier is 6.6 m/s. Determine the work done by the kinetic frictional force that acts on the skis
A small motor is mounted on the axis of a space probe with its rotor (the rotating part of the motor) parallel to the axis of the probe. Through how many revolutions has the rotor turned
at the angle determined above the mass begins to move down the incline and experiences a frictional force. if the net
The plates of a parallel-plate capacitor have a separation of 4.04mm , and each has an area of 15.4cm2 . Each plate carries a charge of magnitude 6.65×10?8C, What is the potential difference between the plates
Assuming that the upper surface of the ice sheet is at -15oC and the bottom surface is at 0oC, Calculate the time it will take to form an ice sheet
A toroidal solenoid with mean radius r and cross-sectional area A is wound uniformly with N1 turns. A second toroidal solenoid with N2 turns is wound uniformly on top of the first, so that the two solenoids have the similar cross-sectional area and m..
An AM radio station broadcasts isotropic ally (equally in all directions) with an average power of 3.20 kW. A dipole receiving antenna 65.0 cm long is at a location 4.00 miles from the transmitter. Calculate the amplitude of the emf that is induced b..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd