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Pavel [41]
3 years ago
10

How to find the mechanical advantage

Physics
2 answers:
FinnZ [79.3K]3 years ago
7 0
To determine its mechanical advantage you'll divide the length of the sloped side by the width of the wedge. For example, if the slope is 3 centimeters and the width is 1.5 centimeters, then the mechanical advantage is 2, or 3 centimeters divided by 1.5 centimeters.
irga5000 [103]3 years ago
5 0

Answer:

{ \bf{mechanical \: adv =  \frac{load}{effort} }}

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What is a circuit,s resistance if 12v produces 2A of current ?
Arlecino [84]
We have to find the resistance.
V = 12
A = 2 
R = ?
And then we divide it to find r.
12/2 = 6 ohm's.
7 0
3 years ago
(a) What resonant frequency would you expect from blowing across the top of an empty soda bottle that is 18 cm deep, if you assu
V125BC [204]

Answer:

476.387 Hz

714.583 Hz

Explanation:

L = Length of tube

v = Speed of sound in air = 343 m/s

Frequency for a closed tube is given by

f=\dfrac{v}{4L}\\\Rightarrow f=\dfrac{343}{4\times 0.18}\\\Rightarrow f=476.389\ Hz

The frequency is 476.387 Hz

If it was one third full L=0.18-\dfrac{1}{3}0.18

f=\dfrac{v}{4L}\\\Rightarrow f=\dfrac{343}{4\times (0.18-\dfrac{1}{3}0.18)}\\\Rightarrow f=714.583\ Hz

The frequency is 714.583 Hz

5 0
3 years ago
Which of the following statements is TRUE?
Yuri [45]
Hello there..

<span>Which of the following statements is TRUE?

</span>D. Light waves are electromagnetic waves and sound waves are mechanical waves.
5 0
3 years ago
Read 2 more answers
Find the density of an object that has a mass of 5 kg and a volume of 50 cm3
serg [7]
Density = mass/volume. 5000/50= 100 grams per cubic centimeter. No substance on Earth has anywhere near that density. Tops is about 20 for osmium and gold.
3 0
3 years ago
Read 2 more answers
Recall that impulse = momentum (FAt = Ap and that Ap is just mx v). How long (time) must a group of people pull with a force of
elixir [45]

The time taken for the group of people to pull the car, giving it a velocity of 1.5 m/s is 3.75 s

Momentum is simply defined as the product of mass and velocity i.e

Momentum = mass × velocity

To answer the question given, we'll begin by calculating the change in momentum. This can be obtained as follow:

Mass = 1500 Kg

Initial velocity (u) = 0 m/s

Final velocity (v) = 1.5 m/s

<h3>Change in momentum =? </h3>

Change in momentum = m(v – u)

Change in momentum = 1500 (1.5 – 0)

Change in momentum = 1500 × 1.5

<h3>Change in momentum = 2250 Kg•m/s</h3>

Finally, we shall determine the time

Change in momentum = 2250 Kg•m/s

Force (F) = 600 N

<h3>Time (t) =? </h3>

Impulse = Ft = change in momentum

FT = change in momentum

600 × t = 2250

Divide both side by 600

t = 2250 / 600

<h3>t = 3.75 s</h3>

Thus, the time required is 3.75 s

Learn more on momentum and impulse: brainly.com/question/14486244

6 0
2 years ago
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