What's the formula for efficiency?

Physics

1 answer:

Neko [114]3 years ago

3 0

Answer:

r=P/C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.

Explanation:

Efficiency is often measured as the ratio of useful output to total input, which can be expressed with the mathematical formula r=P/C, where P is the amount of useful output ("product") produced per the amount C ("cost") of resources consumed.

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Which statement about the mass and the weight of an object is correct?

Fantom [35]

Answer:

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Explanation:

i think it's (C) They have different units ....

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3 years ago

What is the lift (in newtons) due to Bernoulli's principle on a wing of area 96 m2m2 if the air passes over the top and bottom s

egoroff_w [7]

Answer:

$F_{lift}=2.42*10^{9} N$

Explanation:

Apply Bernoulli's principle

$p_{b}+1/2pv_{b}^{2} =p_{t}+1/2pv_{t}^{2} \\p_{b}-p_{t}= 1/2pv_{t}^{2}-1/2pv_{b}^{2}\\p_{b}-p_{t}= 1/2(1.00*10^{3} kgm^{-3} )(270m/s^{2} )-1/2(1.00*10^{3}kgm^{-3} )(150m/s^{2} )\\p_{b}-p_{t}=2.52*10^{7}N/m^{2}\\ F_{lift}=2.52*10^{7}N/m^{2}*96m^{2} \\ F_{lift}=2.42*10^{9} N$

5 0

4 years ago

answer key to Student Exploration: Feed the Monkey (Projectile Motion) page 3 Activity B Question: As the banana flies through s

murzikaleks [220]

As the banana flies through space, up the red arrow showing its path of motion takes a curved or parabolic shape.

<h3>What is a projectile?</h3>

A projectile is an object launched into space at an angle to the horizontal ground and allowed to fall freely under gravity.

The path of motion of a projectile is parabolic.

Examples of objects that are projectiles include:

A thrown banana
A kicked football
An arrow shot from a bow

Therefore, as the banana flies through space, up the red arrow showing its path of motion takes a curved or parabolic shape.

Learn more about projectiles at: brainly.com/question/24216590

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3 years ago

Ques

Amanda [17]

Answer:

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Explanation:

Given data:

Total mass of the skateboarder, $m_{1} = 70 \ kg$