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Andre45 [30]
3 years ago
11

Scientists have been able to determine the numerical age of the most important events in history by using a combination of radio

metric age dating and mathematical modeling. Please put the accompanying events in order from youngest (top) to oldest (bottom).
A. True
B. False
Physics
1 answer:
STatiana [176]3 years ago
3 0

Answer

Explanation:

The question was incomplete as the events are not given in the question. However the answer to your question is given as follows. The correct order of the events from youngest (top) to oldest (bottom) is given as follows.

 Moon formation

         ↑

  Earth formation

          ↑

Nuclear fusion in protosun

           ↑

     BigBang

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raketka [301]

Answer:

there are 5 hydrogen atoms in that formula

3 0
3 years ago
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Water is circulating through a closed system of pipes in a two floor apartment. On the first floor, the water has a gauge pressu
anastassius [24]

Answer:

The value of gauge pressure at outlet = -38557.224 pascal

Explanation:

Apply Bernoulli' s Equation

\frac{P_{1}}{9810} + \frac{V_{1} ^{2}}{19.62} + h_{1} = \frac{P_{2}}{9810} + \frac{V_{2} ^{2}}{19.62} + h_{2} --------------(1)

Where

P_{1} =  Gauge pressure at inlet = 3.70105 pascal

V_{1} = velocity at inlet =  2.4 \frac{m}{sec}

P_{2} = Gauge pressure at outlet = we have to calculate

V_{2} = velocity at outlet = 3.5 \frac{m}{sec}

h_{2} - h_{1} = 3.6 m

Put all the values in equation (1) we get,

⇒ \frac{3.70105}{9810} + \frac{2.4 ^{2}}{19.62} = \frac{P_{2}}{9810} + \frac{3.5 ^{2}}{19.62} + 3.6

⇒ 0.294 = \frac{P_{2}}{9810} + 0.6244 + 3.6

⇒ \frac{P_{2}}{9810} = 0.294 - 0.6244 - 3.6

⇒ \frac{P_{2}}{9810} = - 3.9304

⇒ P_{2} = - 38557.224 pascal

This is the value of gauge pressure at outlet.

3 0
3 years ago
Do electrons have more room to move along a thick or thin wire?
PolarNik [594]

Answer:

Got it from g00gle: Similarly, electrons flow more easily through a thick wire than they flow through a thin wire of the same material. Resistance is greater in a longer wire because the charges travel farther. As temperature increases, a metal's resistance increases because electrons collide more often.

Explanation:

3 0
3 years ago
The diameter of 0-gauge copper wire is 8.252 mm. Find the resistance of a 1.00-km length of such wire used for power transmissio
Dafna1 [17]

Answer:

The value is R = 0.321 \ \Omega

Explanation:

From the question we are told that

   The diameter is  d =  8.252 \  mm  =  0.008252 \  m

    The length of the wire is  l =  1.0 \  km  =  1000 \  m

   Generally the cross sectional area of the copper wire is mathematically represented as

           A  = \pi * \frac{d^2}{4}

=>        A  =  3.142  * \frac{ 0.008252^2}{4}

=>         A  =  5.349 *10^{ - 5} \  m^2

Generally the resistance is mathematically represented as

      R =  \frac{\rho  *  l }{A }

Here \rho is the resistivity of copper with the value  \rho =  1.72*10^{-8} \ \Omega \cdot m

=>    R =  \frac{1.72 *10^{-8}  *   1000 }{5.349 *10^{ - 5}  }

=>    R = 0.321 \ \Omega

5 0
3 years ago
A machine has a mechanical advantage of 4.5. What force is put out by the machine if the force applied to the machine is 800 N?
IrinaK [193]
3600 N is the answer I just took the test
7 0
3 years ago
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