Suppose that a person eats 2387 Calories per day. Convert this amount of energy into unit kWh.

Q: The laptop consumed a total of 20 kW per month. This is equivalent to how many BTU/hr?

A: Given data Power (P) = 20KW

Q: 21 a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A: Given data: Mass of the car = 1550 kg Speed of the car (v) = 900 km/h…

Q: Let Pstel: 8000 Kg/m3

A: Solution :- Given data:- Thickness t = 3mm =0.003mDensity ,ρ =8000Kg/m3m1 = ρ.t1A1m1…

Q: ne specific gravity of a liquid fuel at 60°F is 0.926. What is its density at 3°F in kg/m3?

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Q: On a cold winter day, the rate of heat transfer from the air in a certain room is 5500 Btu/hr. The…

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Q: Find the kinetic energy associated with car of mass 35 kg moving with velocity 10 m/s

A: Given data:-  Mass = 35 kg Velocity = 10 m/s Find kinetic energy .

Q: a. Given A Fan A with Power in Kw of 10.25 and Fan B with 12.75 kw. Speed of Fan B is 750 rpm, Find…

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Q: costs 8 cents per kW-hr, determine the minimum theoretical operating cost to heat the house for 24…

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Q: Find the kinetic energy stored in body of mass 1 kg moving with velocity 2.3 m/s

A: Given data : Mass of body=m Velocity=V   Required : Kinetic energy

Q: Find the velocity of car Kinetic energy=888 J Mass of car=70 kg

A:

Q: A car is moving on a straight road at 10 m/s .it is accelerated at 14 m/s2. What will be it's…

A: Given data :         Time  =  t         Initial velocity  =  u         Acceleration  =  a        To…

Q: C. Find the change in internal energy of the cell during the period of operation. [Ar

A: To find :-  Internal energy change

Q: what is the cost of that heat loss to the home owner for 10hours if the cost of electricity is PHP…

A: Given         Time, t = 10 hours         Rate, R = PHP 0.45/kWh Heat loss, Q = 2.46 kJ/s Find…

Q: Find the potential energy stored in object Mass=8 kg Height to be raised=10 m

A: Given data : Height to be raised h=10 m Mass m=8 kg Acceleration due to gravity g=9.81 m/s2…

Q: Find the value of specific gravity of liquid whose density is 13200 kg/m3

A: Given data : Density of liquid=ρ Density of water=ρW   To find : Specific gravity

Q: Calculate: Work net (kW), heat addition (kW), and thermal efficiency.

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Q: On a piston of 100 mm dia., pressure applied is 954.83 mm of Hg, then the force on the piston is…

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Q: A container contains 2.5 ft^3 of water at 40 °C and ambient pressure is heated until its specific…

A: The problem belong to applied thermodynamics and can be solved as:

Q: 2) a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

A:

Q: f the steem is 100g and the liquid is 12 g. Find the quality of steam?

A: Given Data : Mass of steam(m)=100 gm Mass of liquid(M)=12 gm

Q: The ventilation in a house changes the air every five hours. How much power does it take to warm the…

A: Given : A = 150 m2 T0 = 0 C To find : Power required

Q: If the blade length is 59.9 m, wind speed 15.4 m/s and air density is 1.23 kg/m³, then the wind…

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Q: Find the value of potential energy if mass of ball of 0.3 kg raised to height of 3 m

A: Given data : Mass of ball=m Height at which ball raised=h Acceleration due to gravity=g   Required :…

Q: Find heat transfer between the plates in kW/m2

A: Given data; Two large parralel plates having a gap=10 mm  T1=1000K   T2=400K   ε1=0.5    ε2=0.25…

Q: A specific oil has a Gs = 0.82. Solve for it’s a) specific weight in lb/ft³ and kN/m³ and its mass…

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Q: person heats up a can of soup on a stove. If they do 200 joules of work on the soup by stirring it…

A: Given information: The work done on the soup by stirring (W) = - 200 J (“-ve” since work is done on…

Q: At a temperature of 400 F, find the size of the orifice of the pressure relief valve to be used in a…

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Q: 1. Steam enters a turbine with an enthalpy of 1292 Btu/lb and leaves with an enthalpy of 1098…

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Q: the rate of 0.5 kW. How long does it take for the temperature of the water to rise to 35°C if no…

A: Given: mass of water =20 kg T1=25oC rigid tank W=0.5 kW T2=35oC Heat loss =0 Cp= 4.184 kJ/kgK To…

Q: Find :1) Nth 2)Net work per kg

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Q: 1.63 lb of gas is stored in a tank of 2ft3. If the internal energy decreases by 27.4 BTU as…

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Q: Find the displacement, velocity, kinetic energy, potential energy and momentum of an object, taking…

A: Displacement- The distance measured from the initial to the end state. Velocity -Rate of change of…

Q: A proton has kinetic energy of 1100 MeV and a mass of 938 What is its momentum? What is its speed?

A: given data- kinetic energy E = 1100 MeV mass of proton m = 938 MeV/c2 to determine - speed of the…

Q: QI. A hydroclectric station has a cubic tank of height 50m above the carth. This cubic tank has an…

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Q: Given: Mass of toy car=2 kg Velocity=0.9 m/s Find kinetic energy

A: Given data : Mass of toy car=m Velocity of toy car=V   Find : Kinetic energy

Q: the in internal and the h change energy

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Q: The components of energy for flowing fluid flow through an inlet are mV² (KE), mgz (PE), and what?

A: The components of energy for flowing fluid flow through an inlet are mV2 (KE), mgz (PE), and what?

Q: 3. Steam enters a turbine with an enthalpy of 1292 Btu/lb and leaves with an enthalpy of 1098…

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Q: Steam  enters  a  turbine  with  an  enthalpy  of  1292  Btu/lb  and  leaves  with  an  enthalpy of…

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Q: What will be the potential energy of 1kg mass kept at height of 5 m. Take g = 10 m/s²

A: Given  : mass of body = m= 1 kg              height of body, h = 5 m               g= 10 m/s2 To…

Q: A car of mass 30 kg is moving on a road with 4 m/s^2 . The road exerts 35 N frictional force on the…

A: The free body diagram of the car is drawn as,

Q: Determine the COP of carnot HP

A: Given: Carnot heat pump is operating , for which we have to find the Coefficient of performance;Data…

Q: However a gas does a differential amount of work δWb as it forces the piston to move by a…

A: Given Cylinder with piston To find Verify the statement differential amount of work δWb as it forces…

Q: Find the velocity of car Kinetic energy=888 J Mass of car-70 kg

A: Given:Kinetic energy, KE=888 JMass of car, m=70 Kg

Q: QI. A hydroelectric station has a cubic tank of height 50m above the earth. This cubic tank has an…

A:

Q: - Find the potential energy of a 2 kg rock held 3 meters above the ground.

A: Given: Mass of the block, m=2 kgHeight of the block from the datum, h=3 m