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A vacuum uses input energy of 200 000 j to clean a carpet if 140 000 j of output energy is waste energy what is the efficiency of the vacuum?
This question means that 60 000 J is used usefully (this is used to produce the kinetic energy of the air flow that does the cleaning), so the ratio of useful energy to the total is 60/200 which is 30 percent. This is the efficiency of the device.
What is the potential energy of a 2 000 kg car parked at the top of a 30 m hill?
The potential energy of the car is given by the formula: Potential Energy = mass x gravitational acceleration x height. Plugging in the values: PE = 2000 kg x 9.81 m/s^2 x 30 m = 588,600 J. So, the potential energy of the car parked at the top of the hill is 588,600 Joules.
How are stars and gravity related?
The forces of gravity between two masses are always forces of attraction. As far as we know now, gravity always draws the two masses towards each other, and never pushes them apart.
How can you write this in scientific notation 300 000 000?
300 000 000 in scientific notation is 3.0 x 10^8.
How much energy does Canada consume in one year?
The United States is the largest energy consumer in terms of total use, using 100 quadrillion BTU (105 exajoules, or 29000 TWh) in 2005, equivalent to an (average) consumption rate of 3.3 TW. The U.S. ranks seventh in energy consumption per-capita after Canada and a number of small countries. The majority of this energy is derived from fossil fuels: in 2005, it was estimated that 40% of the nation's energy came from petroleum, 23% from coal, and 23% from natural gas. The remaining 14% was supplied by nuclear power, hydroelectric dams, and miscellaneous renewable energy sources.
What is 40000 divided by 0.4?
100000
40 000 divided by 24 equals?
40000/24 = 1,666.666666666 . . .
If there are 40000 kilograms in 50000 grams how many grams are there?
40 000 kg + 50 000 g = 40 050 000 g
What is 40000 milligrams expressed in grams and kilograms?
40 000 mg = 40 gTo convert from mg to g, divide by 1000. 40 000 mg = 0.04 kgTo convert from mg to kg, divide by 1 000 000.
How many centimeters are in 40 000 meters?
There are 100 centimetres in one metre. Therefore, 40000 metres is equal to 40000 x 100 = 4000000 centimetres.
How much is 40 000 dollars in English money?
$40000 is about 25700 pounds sterling
If you make 40000 dollars a year how much do you make every two week?
$40 000 in 52 weeks52/2 = 2640 000/26 = $1538.46 per 2 weeks
How many kilometers does 40000 meters make?
40 000 m = 40 kmTo convert from m to km, divide by 1000.
How many kilometers are in 40000 miles?
40 000 kilometers = 24 854.8477 milesThe formula to arrive at the answer:40,000 km*1 mi1.609344 km=24,854.84769 mi
Is an electromagnetic wave of 300 000 000 000 000 000 000Hz associated with a greater or lower quantity of energy?
Greater or lower than what?
How many 400 grams balloons do you need to make 40 kilograms?
40 kg = 40 000 grams Answer 40000/400 ballons = 100 ballons
How do you write 540 000 in roman numeral?
500000=D with horizontal bar above it 40000=XL with horizontal bar above it Therefore: .............____ 540000= DXL
