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What is the efficiency of a street cleaners engine when the heat input is 200 000 joules and the waste heat is 150 000 joules?
Wiki User
∙ 13y ago
200,000-150,000= 50,000
25 %
Wiki User
∙ 13y ago
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What is the efficiency of a street cleaner's engine when the heat input is 200000 joules and the heat waste is 150000 joules?
25 percent
What is the efficiency of a street cleaners engine when the heat input is 200000 joules and the waste is 150000 joules?
If the waste heat is 15 compared to the total heat input of 20 (ignoring the thousands) this means the heat doing useful work is 5, which represents 25 percent of the total input heat, so this is the efficiency. Waste heat in a car is the sum of the engine cooling losses and the exhaust losses, the rest is converted to mechanical energy which is useful. 25%
A 14 kg cart is coasting down a street at a steady speed of 7 ms what is the kinetic energy of the cart?
Kinetic Energy = (1/2) x (M) x (V2) = (1/2) x (14) x (49) = 7 x 49 =343 joules
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An object's position is defined in relation to the speed of another object true or false?
That is one way to define a position, although it is not the only way. My position, for example, is defined by an address, which tells where I am in relation to a particular street in a particular city. The street and city are not moving with respect to myself (one could argue that they are moving with respect to the sun, but that is irrelevant to the problem of determining my own position). So the speed of that street would be measured as zero. The address, nonetheless, specifies my location on the street, even though at every address on that street, the speed of the street remains zero.
What is the efficiency of a street cleaner's engine when the heat input is 200000 joules and the heat waste is 150000 joules?
25 percent
What is the efficiency of a street cleaners engine when the heat input is 200000 joules and the waste is 150000 joules?
If the waste heat is 15 compared to the total heat input of 20 (ignoring the thousands) this means the heat doing useful work is 5, which represents 25 percent of the total input heat, so this is the efficiency. Waste heat in a car is the sum of the engine cooling losses and the exhaust losses, the rest is converted to mechanical energy which is useful. 25%
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street sweeper
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the street cleaners clean the street .. mostly people that haven't been very successful at school to get a good job .
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not sure but just use street cleaners....
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In "The Giver," the street cleaners are responsible for keeping the community clean by picking up debris and maintaining the public spaces. They work diligently to ensure that the streets are orderly and free of any litter. The job of a street cleaner is considered important for maintaining the pristine appearance of the community.
What was the work the poor Victorian children had to do?
They worked as Chimney Sweeps,Factory Workers,Street Cleaners and Minners
Did the Romans invent street cleaners?
It is not known Other earlier urban civilisations must have had arrangements for keeping the streets clean.
What occupation has the highest death tolls during the plague?
Priests, street cleaners and doctors. They came in direct contact with dead bodies.
