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Bradly Kertzmann

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2y ago
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Cards in this guide (12)
A sailor pulls a 2000 kilogram boat 25 meters along the dock with a rope attached to the boat that makes a 45 degree angle with the dock. How much work is done by the sailor if he exerts a force of 4

7,071 J

Which of these changes as the momentum of an object changes

Mass

A bicycle is an example of what machine

A bicycle is an example of a complex machine, consisting of interacting simple machines.

What factor prevents a machine from operating at 100 percent efficiency

Friction((:

The value of the impulse equals the force x the

The value of the impulse equals the the force times the time.

V-cube 7 or megaminx

megaminx

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%

All moving objects have momentum

Any moving object with mass has momentum, since p = mv, where p is momentum, m is mass, and v is velocity.

What does a force applied to a stationary object give the object

"Motion" or "Momentum"

What does the amount of force times the time applied equal

impulse

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 player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 ms

Yes your question is.......................

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