I think you forgot to give the options along with the question. I am answering the question based on my knowledge and research. It is <span>possible to tell if objects in space are moving closer to us or farther away based on several procedures like parallax and standard candles. I hope the answer has come to your help.</span>
Answer:
Use the drop-down menus to answer each question.
Which runner finished the 100 m race in the least amount of time?
✔ Ming
Which runner stopped running for a few seconds during the race?
✔ Chloe
At what distance did Anastasia overtake Chloe in the race?
✔ 40 m
Answer:
length is 23.228091 m
Explanation:
Given data
radius = 0.791 mm = 0.791 ×
m
current = 9.25 A
voltage = 1.20 × 10² V
to find out
resistance and length of wire
solution
we know the resistance formula that is
resistance = voltage / current
resistance = 1.20 × 10² /9.25
resistance = 12.97
so resistance is 12.97 ohm
and length of nichrome wire formula is
length = resistance × area / specific resistance of wire
so specific resistance of wire we know = 1.1 ×
and area =
× r² =
× (0.0791×
)²
area = 1.97 × 
length = 12.97 × 1.97 ×
/ 1.1 ×
so length is 23.228091 m
Answer:
c = λf
E = h f
the characterization of electromagnetism is given as a function of energy or frequency.
Explanation:
In waves the frequency and donut length are related by the speed of the wave
c = λf
therefore the two quantities are not independent.
The energy of an electromagnetic wave is given by
E = h f
where h is the planck constant and f the frequency of the wave
This energy determines how the wave interacts with the surrounding medium. Low energy waves only create movement of the atomic nuclei and as the energy increases, the electrons are excited.
As a result of the above, the characterization of electromagnetism is given as a function of energy or frequency.