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Alex777 [14]
3 years ago
7

Did I do these questions correctly?

Physics
1 answer:
Elena L [17]3 years ago
8 0
For number 11, you should say that there is more pollution and fossil fuels being burned.
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A scientist conducted research and plotted his results in the histogram shown below. Which of the
ludmilkaskok [199]

Answer:

Median

Explanation:

  • we commonly use mean as the measure of the center of the data.
  • But Median is better measure than mean.

<u>Extra</u><u> </u><u>information</u><u>:</u><u>-</u>

<u>Median</u><u> </u><u>formula</u><u>:</u><u>-</u>

\boxed{\begin{minipage}{6cm}$\bigstar$\:\:\sf Median = l + $\sf\dfrac{\frac{n}{2}-C.f.}{f}\times h\\\\Here: \\1)\:n = \sum f =\\2)\:l=Lower\:limit\:of\:median\:class=\\3)\:C.f.=Cumulative\:frequency\:of\:class\\preceeding\:the\:median\:class=\\4)\:f= frequency\:of\:median\:class=\\5)\:h= Class\:interval = \end{minipage}}

6 0
3 years ago
Please answer question B.
Flura [38]

Answer: 3.92

Explanation:

7 0
3 years ago
As the phase angle is decreased, the power factor is
Darina [25.2K]
The answer is increased.  A power factor of one or "unity power factor" is the aim of any electric utility business from the time when if the power factor is less than one, they have to give more current to the user for an assumed amount of power use. In so doing, they gain more line harms.
7 0
3 years ago
17) The "investiture struggle" that took place between Pope Gregory VII and King Henry IV symbolized the struggle between the ch
siniylev [52]

Answer:

Explanation:

For anyone in UsaTestPrep it is D) appoint church positions The "investiture struggle" of the 11th and 12th centuries that took place between Pope Gregory VII and King Henry IV symbolized the struggle between the church and state over who had the power to appoint church positions. Pope Gregory VII later excommunicated King Henry IV over this issue and it led to a weakening in the Holy Roman Empire therefore it is D.  

4 0
3 years ago
Read 2 more answers
Suppose that a constant force is applied to an object. newton's second law of motion states that the acceleration of the object
amid [387]

Newton’s second law states that force is the product of mass and acceleration. This is expressed mathematically as:

F = m * a

Where F = force, m = mass, a = acceleration

Since in the given problem, the force is constant or same force is acting upon two objects. Therefore we can simply equate the expression m * a of the 2 objects.

m1 * a1 = m2 * a2

Where m1 = 2 kg, a1 = 38 m/s^2, m2 = 19 kg. Therefore finding for a2:

2 kg * 38 m/s^2 = 19 kg * a2

<span>a2 = 4 m/s^2     (ANSWER)</span>

3 0
4 years ago
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