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astra-53 [7]
3 years ago
9

The record for the highest speed achieved in alaboratory for a

Physics
1 answer:
Ira Lisetskai [31]3 years ago
3 0

Answer:

0.000234 seconds

Explanation:

Since the row is 0.15m, its radius of rotation must be 0.15 / 2 = 0.075 m

We can start by calculating the angular speed of the rod:

\omega = \frac{v}{r} = \frac{2010}{0.075} = 26800 rad/s

Since one revolution equals to 2π rad. The speed in revolution per second must be

26800 / 2π = 4265 revolution/s

The number of seconds per revolution, or period, is the inverse:

1/4265 = 0.000234 seconds

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Striking a match stick on the matchbox involves the reaction of potassium chlorate and red phosphorus with the following equatio
yarga [219]

Answer:

m(P4) =  46.175 (grams)

m (KClO3) = 149 (grams)


Explanation:

1) n(P4) = n(P4O10);

m(P4)/M(P4) = m(P4O10)/M(P4O10);

m(P4) = M(P4)*m(P4O10)/M(P4O10)
          = 123.90*105.8/283.89
          = 46.175 (grams)

2) Analogously, 10n(P4O10) = 3n(KClO3)

m (KClO3) = 10M(KClO3)*m(P4O10)/3M(P4O10)
                = 10*122.55*105.8/283.89/3
                = 149 (grams).

6 0
2 years ago
HELP ME DO THIS QUESTION PLEASE ​
raketka [301]

Answer:

i dont know

Explanation:

but what you can do is ask you mom or dad to get you a tutor to help you

7 0
3 years ago
How can people take picture fpr black hole?
Jet001 [13]

We actually cant, really. Black Holes are really very powerful and don't just happen in some random place in the cosmos. We have got shots of Black holes that you cannot even see, but all the other big black holes that look like something straight of a sci-fi movie that look real, are really just photo- shopped. good question. Hope This Helped.

5 0
3 years ago
Read 2 more answers
Which statement best explains how tectonic activity affects long-term climate change?
Alina [70]

Answer:

The movement of continents changes wind patterns and ocean currents.

hope this helps!

Explanation:

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4 years ago
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calculate the initial velocity of an object displaced 33 meters while accelerating 8 m/s^2 to a final velocity of 68 m/s how do
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Use the equation

{v_f}^2-{v_i}^2=2a\Delta x

The final velocity v_f is 68 m/s, the acceleration a is 8 m/s^2, and the net displacement \Delta x is 33 m, so you can solve for the initial velocity v_i:

\left(68\,\dfrac{\mathrm m}{\mathrm s}\right)^2-{v_i}^2=2\left(8\,\dfrac{\mathrm m}{\mathrm s^2}\right)(33\,\mathrm m)

{v_i}^2=4096\,\dfrac{\mathrm m^2}{\mathrm s^2}

v_i=64\,\dfrac{\mathrm m}{\mathrm s}

8 0
3 years ago
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