How much heat energy is needed to convert 50 kg of water at 80 degrees Celsius to steam at 100 degrees Celsius
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Definition1/14
117,180,000
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Term1/14
A hammer is used to pull a nail from a piece of wood How could the hammer be modified to make the task easier
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Definition1/14
Make The Handle Longer
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Term1/14
A bicycle is an example of what machine
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Definition1/14
A bicycle is an example of a complex machine, consisting of interacting simple machines.
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Term1/14
A man and a woman exert a total of 900 N by pushing a car 20 meters across the street The man exerts twice as much force as the woman How much work does the man do
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The man exerts a force of 600 N and the woman exerts a force of 300 N. Work done by the man = Force x displacement = 600 x 20 = 12,000 J Hence, the man performs 12,000 joules of work.
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Term1/14
What factor prevents a machine from operating at 100 percent efficiency
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Friction((:
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Term1/14
Work is done when a force is applied to an object if the object
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is moved
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Term1/14
A 14 kg cart is coasting down a street at a steady speed of 7 ms what is the kinetic energy of the cart
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Kinetic energy = 1/2 M V2 = 0.5 x 14 x 49 = 343 joules
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Term1/14
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall
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4900
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Term1/14
A ramp is 30 meters long and 5 meters high 200 newtons of force must be applied by the mover to push a 1000 newton piano up the ramp
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What is the amount of work accomplished by the ramp? - 5000
joules
What is the amount of work done by the mover? - 6000 joules
What is the efficiency of the ramp? - 83%
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Term1/14
How much heat energy would it take to melt a 20 kg block of lead that was at 24 degrees Celsius
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1,277,800 j
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Term1/14
This term is the center of interest for an artwork
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Definition1/14
Focal Point for my A+ buddies ;p
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Term1/14
How many joules of work are done when a 20 newton box is lifted 5 meters off of the floor
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Definition1/14
100
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Term1/14
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
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250 newtons
A+ Answers
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A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. value of fo
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What is the value of fo?
2000 newtons
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Cards in this guide (14)
How much heat energy is needed to convert 50 kg of water at 80 degrees Celsius to steam at 100 degrees Celsius
117,180,000
A hammer is used to pull a nail from a piece of wood How could the hammer be modified to make the task easier
Make The Handle Longer
A bicycle is an example of what machine
A bicycle is an example of a complex machine, consisting of interacting simple machines.
A man and a woman exert a total of 900 N by pushing a car 20 meters across the street The man exerts twice as much force as the woman How much work does the man do
The man exerts a force of 600 N and the woman exerts a force of 300 N. Work done by the man = Force x displacement = 600 x 20 = 12,000 J Hence, the man performs 12,000 joules of work.
What factor prevents a machine from operating at 100 percent efficiency
Friction((:
Work is done when a force is applied to an object if the object
is moved
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 M V2 = 0.5 x 14 x 49 = 343 joules
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall
4900
A ramp is 30 meters long and 5 meters high 200 newtons of force must be applied by the mover to push a 1000 newton piano up the ramp
What is the amount of work accomplished by the ramp? - 5000
joules
What is the amount of work done by the mover? - 6000 joules
What is the efficiency of the ramp? - 83%
How much heat energy would it take to melt a 20 kg block of lead that was at 24 degrees Celsius
1,277,800 j
This term is the center of interest for an artwork
Focal Point for my A+ buddies ;p
How many joules of work are done when a 20 newton box is lifted 5 meters off of the floor
100
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
250 newtons
A+ Answers
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. value of fo
Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
How much heat energy is needed to convert 50 kg of water at 80 degrees Celsius to steam at 100 degrees Celsius
A man is carrying cement blocks weighing 200 newtons up a ladder to a platform 7 meters above the ground He has been carrying 2 blocks per minute How much work is done in 10 minutes
A hammer is used to pull a nail from a piece of wood How could the hammer be modified to make the task easier
Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
How much heat energy is needed to convert 50 kg of water at 80 degrees Celsius to steam at 100 degrees Celsius
A man is carrying cement blocks weighing 200 newtons up a ladder to a platform 7 meters above the ground He has been carrying 2 blocks per minute How much work is done in 10 minutes
A hammer is used to pull a nail from a piece of wood How could the hammer be modified to make the task easier
Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
How much heat energy is needed to convert 50 kg of water at 80 degrees Celsius to steam at 100 degrees Celsius
A man is carrying cement blocks weighing 200 newtons up a ladder to a platform 7 meters above the ground He has been carrying 2 blocks per minute How much work is done in 10 minutes
A hammer is used to pull a nail from a piece of wood How could the hammer be modified to make the task easier
How much heat is needed to raise 8 kg of water from 4 degrees Celsius to 83 degrees Celsius
Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
How much heat energy is needed to convert 50 kg of water at 80 degrees Celsius to steam at 100 degrees Celsius
A 45.0 kg skater is skating at a speed of 12.0 ms The skater coasts to a speed of 6.00 ms How much kinetic energy has the skater lost
A hammer is used to pull a nail from a piece of wood How could the hammer be modified to make the task easier
A bicycle is an example of what machine
A man and a woman exert a total of 900 N by pushing a car 20 meters across the street The man exerts twice as much force as the woman How much work does the man do
What factor prevents a machine from operating at 100 percent efficiency