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Dan wants to lift his car using a movable pulley system like the one shown in the picture. Using a movable pulley system will decrease the force needed to lift the car by increasing the?
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How do you decrease the amount of force needed to do work?
Decrease friction.
How does a movable pulley reduce the input force needed to lift a weights?
a lever
Does a catalyst decrease or increase the activation energy required?
The catalyst decrease the needed activation energy.
What can decrease the activation energy needed to start a rection?
A Catalyst
How does increasing the distance of an inclined plane effect the force needed to raise an object?
the less force is needed.
Why is alternating current more effective at long distance travel than direct current?
Transformers increase and decrease voltage as needed. PLATO
What is the difference between a fixed pulley and movable pulley?
The difference between a fixed pulley and a movable pulley is, the wheel of a fixed pulley does not move because the wheel is attached to a wall, ceiling, or other object. Unlike a fixed pulley, a movable pulley's wheel does move. The wheel on a movable pulley is not attached to a wall or other object. A fixed pulley changes work by changing the direction of a force. A movable pulley changes work by reducing the input force needed to lift heavy objects. A movable pulley changes the direction of the input force and reduced it. A movable pulley also increases the output force.
The frequency of elections in the United States reduces voter turnout by what?
d. increasing the personal effort needed to participate in all elections.
What input is needed to do the job no machine can ever decrease?
ground water
Advantages of multiplate clutch over single plate clutch?
There are many advantages of multi-plate clutches over single plate ones. They decrease the moment of inertia of the clutch and increase the amount of torque that is transmitted through increasing the frictional coefficient of the clutch plates. In addition, they decrease the amount of force needed to operate the clutch, enabling faster and smoother shifting.
Why did roman coins decrease value?
from inflation when the emperors needed to bring down the value of money when they needed more money
What are the differences between a fixed pulley and a moving pulley and how do each of them change work?
The difference between a fixed pulley and a movable pulley is, the wheel of a fixed pulley does not move because the wheel is attached to a wall, ceiling, or other object. Unlike a fixed pulley, a movable pulley's wheel does move. The wheel on a movable pulley is not attached to a wall or other object. A fixed pulley changes work by changing the direction of a force. A movable pulley changes work by reducing the input force needed to lift heavy objects. A movable pulley changes the direction of the input force and reduced it. A movable pulley also increases the output force.
