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liraira [26]
3 years ago
8

HELP ITS FOR SCIENCE

Physics
2 answers:
yuradex [85]3 years ago
7 0
For number 2:
Speed is related to kinetic energy because kinetic energy is the energy of motion.

Hope this helped!
Rashid [163]3 years ago
7 0

Answer:

A wrecking ball has the capability to destroy a building due to the greater mass and kinetic energy than the yo-yo.

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(Modified problem 3-11 in Chapman) In later years, motors improved and could be run directly from a 50 Hz power supply. As a res
Ahat [919]

Answer:

Hence to get the same speed, the ratio of poles of generator to motor should be 3.

Explanation:

We are given that the speeds of the motor-generator sets are same.

In case of motors we have operating frequency 16.67 Hz and now we need to define the number of poles of generator set so that we can get the same speed.

For the case of motor, we write an equation;

f m = speedm x Pm / 120

speedm = fm x 120 / Pm

For the case of generator we write an equation;

speedg = fg x 120 /Pg

Now we know that speedm = speedg

fm x 120 / Pm = fg x 120 /Pg

fm / Pm = fg  /Pg

16.67 / Pm = 50 / Pg

Pg / Pm = 50 / 16.67

Pg / Pm = 3

Hence to get the same speed, the ratio of poles of generator to motor should be 3.

For example;

If motor has 2 poles, then generator will have 6 poles

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3 years ago
Her wolle<br>molecules are called<br>e Blood cells, Proteins<br>membrance remain in the blood​
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Answer:

Other peripheral membrane proteins of red blood cells include actin, ankyrin ... proteins to be characterized, its precise function remains unknown. ... This protein​, originally known as band 3, is the anion ... and small polar molecules (in the case of E. coli, with molecular weights up to 600).

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