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Physics

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Kayley Johns

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Cards in this guide (6)
What factor prevents a machine from operating at 100 percent efficiency

Friction((:

A force of 20 N gives a ball an acceleration of 4.0 ms on a level frictionless surface what is the mass of the ball

F=ma

m=F/a

m=20/4.0

m=5Kg

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

What is the value of fo?

2000 newtons

What is the voltage drop running through the parallel potion of the circuit

A: There is no voltage drop running through in a parallel circuit but rather the voltage drop across each branch of a parallel circuit is the same

As frequency increases the energy of a wave increases or decreases

As frequency increases the energy of a wave also increases.

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