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tensa zangetsu [6.8K]
3 years ago
10

A 75 watt lightbulb runs for 11 seconds. how much energy does it use?

Physics
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

825 Joules of energy would be correct if my math is right.

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sashaice [31]

Answer:

The answer is: Increase the Number of Ropes/Pulleys.

Explanation:

A "pulley" <u><em>is an object that supports a particular movement such as supporting a force's change in direction (provided that the direction is applied to a cord). </em></u>This is regarded as a "simple machine" consisting of a wheel on an axle. This helps guide cables or ropes.

This machine is used <em>in order to decrease the amount of time it takes to do work, such as lifting of objects.</em>

Remember that "mechanical advantage"<u> refers to the ratio between the force applied to a machine and the force produced by it.</u> So, when it comes to pulleys, the mechanical advantage increases when the number of ropes are also increased. They are directly proportional. This goes the same way with increasing the number of pulleys. Once you increase the number of pulleys, the mechanical advantage also increases.

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If you are asked to determine an object’s speed, what information must you have? A. distance and period of time B. distance and
Ierofanga [76]
<span>A. distance and period of time 
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CAN ANYONE HELP PLEASE I NEED THIS DONE BY TODAY!! I WILL MARK YOU BRIANLYIST.
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I have no idea my dude sorry
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Define SI unit of force. A force of 8N acting on a body changes its velocity uniformly from 2 m/s to 5    m/s in 20s. Calculate
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Answer:

si unit of force is Newton or dyne

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