3 years ago

Mechanical advantage is a measure of how much a machine multiplies the input

Physics

1 answer:

dalvyx [7]3 years ago

3 0

B will be your answer to ur ?

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g 2. In a laboratory experiment on standing waves a string 3.0 ft long is attached to the prong of an electrically driven tuning

abruzzese [7]

Answer:

The tension in string will be "3.62 N".

Explanation:

The given values are:

Length of string:

l = 3 ft

or,

= 0.9144 m

frequency,

f = 60 Hz

Weight,

= 0.096 lb

or,

= 0.0435 kgm/s²

Now,

The mass will be:

= $\frac{0.0435}{9.8}$

= $0.0044 \ kg$

As we know,

⇒ $\lambda=\frac{2L}{n}$

On substituting the values, we get

⇒ $=\frac{2\times 0.9144}{4}$

⇒ $=0.4572 \ m$

or,

⇒ $v=f \lambda$

⇒ $=0.4572\times 60$

⇒ $=27.432 \ m/s$

Now,

⇒ $v=\sqrt{\frac{T}{\mu} }$

or,

⇒ $T=\frac{m}{l}\times v^2$

On putting the above given values, we get

⇒ $=\frac{0.0044}{0.9144}\times (27.432)^2$

⇒ $=\frac{752.51\times 0.0044}{0.9144}$

⇒ $=3.62 \ N$

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3 years ago

100POINTTTTTSSS PLEASE HELP

attashe74 [19]

Components connected in series are connected along a single path, so the same current flows through all of the components. If the light bulbs are connected in parallel, the currents through the light bulbs combine to form the current in the battery, while the voltage drop is across each bulb and they all glow.

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4 years ago

How can shoe and tire marks be preserved in mud?

dimaraw [331]

The answer is A) Casting

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3 years ago

An atomic scientist was studying an atom and through experimentation found that the total negative charge of the

Artist 52 [7]

Answer:

This atom has nine electrons

Explanation:

I just did it and I got it right.

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4 years ago

SO! I'VE GOT A COUPLE QUESTIONS RELATING TO SCIENCE (WHERE ARE MY SCIENCE WHIZZES?) TRUST ME THERE WILL BE MORE

Helga [31]

Answer:

nnnnnnnnnnnnnnnnnnnnnnnn

Explanation:

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3 years ago

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