mechanical energy at the rate of 35 W. If thermal conductivity of
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A: Given, Force (Fs) = 500 N Mass (m) = 0.5 kg Displacement (x) = 350 mm
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A: Given data:- Mass = 4.69kg P1 =P2 = 170kpa T1= 22°C T2 = 207.8 °C
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- The tip of a soldering iron consists of a 0.6-cm- diameter copper rod, 7.6 cm long. If the tip must be 204C, what are the required minimum temperature of the base and the heat flow, in watts, into the base? Assume that h=22.7W/m2KandTair=21C.An electric motor is used to drive the shaft of a small water pump. During a performance test, the torque on the motor shaft is found to be 5.549 N.m when the motor is drawing 687.12 W of electrical power. What's the rotational speed of the shaft in rpm?give two example and explanation of thermal energy transformation at constant volume, pressure and heat that happen in daily
- A 0.4 kgkg piece of ice at -15 ∘C∘C is dropped from a height hh. Upon impact, 7.0 %% of its kinetic energy is converted into heat energy. Part A If the impact transforms all of the ice into water that has a final temperature of 0 ∘C∘C, find hh. Express your answer in meters.An electric motor is used to drive the shaft of a small water pump. During a performance test, the torque on the motor shaft is found to be 5.886 N•m when the motor is drawing 763.54 W of electrical power. What is the rotational speed of the shaft in rpm?A 2-kW electric resistance heater in a room is turned on and kept on for 30 min. Find the amount of energy transferred to the room by the heater.
- If 8lbs of a substance receives 240BTU 9+of heat constant volume and undergo a temperature change of 150°F.A typical candy bar has around 250kcal of energy. If all of this energy was used to heat 1kg of water, how much would the temperature of the water be raised by? Show your work.A 48 HP motor is used to drive an air compressor. The compressor efficiency is 80 % Determine the compressor work in kW Answer in whole number
- A room changes the room air from with outside air at 2 kg/hr (air density is 1.2 kg/cu.m). If the temperature from the outside is 80 F and temperature inside is 60F. Determine the ventilation heat load in kilowatts.A steel rod of 0.5 cm diameter and 10 m length is stretched 3 cm. Young’s modulus for this steel is 21 kN/cm2 . How much work, in kJ, is required to stretch this rod?The wall of a house, 7 m wide and 6 m high is made from 0.3 m thick brick withk=0.6 W/m.K. The surface temperature on the inside of the wall is 16C and that onthe outside 6C. Find the heat flux through the wall and the total heat loss through it.