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Scilla [17]
3 years ago
6

What is the mechanical advantage supplied by a 1000 N object lifted using 250 N of force

Physics
1 answer:
Ivenika [448]3 years ago
4 0

Answer:

Mechanical advantage=4

Explanation:

Load=1000N

Effort=250N

mechanical advantage=load/effort

Mechanical advantage=1000/250

Mechanical advantage=4

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Find the noise level of a sound having an intensity of 1.5x10^-14W/m^2 given I0=10^12 W/m2
Llana [10]

Answer:

Noise level will be -18.2 watt

So option (b) will be correct answer

Explanation:

We have given sound intensity I=1.5\times 10^{-14}w/m^2

And threshold intensity I_0=\times 10^{-12}w/m^2 ( in question it is given as 10^{12}w/m^2 but its standard value is 10^{-12}w/m^2 )

Now noise level  =10log\frac{I}{I_0}=10log\frac{1.5\times 10^{-14}}{10^{-12}}=10log0.015-18.23

So the noise level will be -18.2

So option (b) will be correct answer

5 0
3 years ago
running back in a football game ran 5 yards north, then ran 6 yards east before being tackled. What distance did he run?
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Explanation:

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Answer:

true

Explanation:

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4 0
3 years ago
B. CO
Hunter-Best [27]

Answer:

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