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2 years ago

Hydraulics uses _______ to change the size and/or direction of a force

1 answer:

5 0

I know this the answer is <span>pressurized liquids if you go on quizlet they will always give you the answer just so you know</span>

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A flat coil having 40 turns, each one of cross-sectional area 12.0 cm^2, is oriented with its plane perpendicular to a uniform m

iragen [17]

what means emf ? what it means

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3 years ago

What is the name given to this group of elements?

Marianna [84]

Your answer would be A. Halogens

6 0

3 years ago

Which of The following are classiFcatons describing how rock and oTher maTerial movedownslope?a. Fall, b. slide, c. slump, d. cr

nlexa [21]

Answer:

correct answer is Fall slide, slump, creep, flow

Explanation:

solution

we know that Movement of particle under the influence of gravity

so rock and other material move down as gravity.

first rock particle fall down because falls occur very rapidly with high slope after that they slide on the slope and after sliding they slump and it occurs when the rupture surface is curved after slump process they creep.

after creeping, it can flow particle as it occurs slowly with the low slope with water.

so correct answer is Fall slide, slump, creep, flow

7 0

3 years ago

If the half-life of tritium (hydrogen-3) is 12.3 years, how much of

tatyana61 [14]

Answer:

0.0000076 grams

Explanation:

We're given the half life of Tritium to be 12.3 years. In order to find out the amount of substabce remaining:

Let's first find how many 'half lives' are in 250 years.

$n = \frac{250}{12.3} = 20.325$

Now what is half life? It means the time taken for a given quantity of an element to lose half it's mass.

So in 12.3 years we can find that The amount of 250 g of Tritium will be 250/2 = 125 g. In 24.6 years we'll have 125/2 = 62.5 g

So now we can devise a formula:

$m = \frac{original \: amount}{ {2}^{n} }$

Where m is the remaining amount and n is th number of half lives in the time given.

Using this formula we can calculate:

$m = \frac{10}{ {2}^{20.325} }$

Doing this calculation we get:

$m = 0.0000076 \: g$

As we can see a very small value remains.

4 0

2 years ago

The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.56 m and 1.00 m, respectively. The respective

valentina_108 [34]

Answer:

Explanation:

Given

Diameter of main rotor $d_1=7.56 m$

Tail rotor $d_2=1 m$

$N_1=453 rev/min$

$N_2=4137 rev/min$

$\omega =\frac{2\pi N}{60}$

$\omega _1=\frac{2\pi 453}{60}=47.44 rad/s$

$\omega _2=\frac{2\pi 4137}{60}=433.28 rad/s$

Speed of the tip of main rotor $=\omega _1\times r_1=47.44\times \frac{7.56}{2}=179.32 m/s$

Speed of tail rotor $=\omega _2\times r_2=433.28\times \frac{1}{2}=216.64 m/s$

7 0

3 years ago