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tamaranim1 [39]
2 years ago
11

In any electromagnetic wave,

Physics
1 answer:
KATRIN_1 [288]2 years ago
3 0
C.half the energy is carried by the electric field and half is carried by the magnetic field.
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Give reason.<br><br><br>b} String roller is an example of wheel and axel .Why?<br><br>​
Leokris [45]

Explanation:

string roller is called an example of wheel and axel because The thin rod which needs to be turned is called the axle and the wider object fixed to the axle, on which we apply force is called the wheel.

hence the we apply force on the roller and the string gets tight.

8 0
3 years ago
Grinding quartz crystals down to produce sand is an example of a a. change of state. c. chemical reaction. b. chemical change. d
seraphim [82]
D. A physical change

The makeup of it is still the same it's just ground up
5 0
3 years ago
Mary has a mass of 40 kg and sprints at 1 m/s. How much kinetic energy does she have?
Sav [38]

Answer:

20 J

Explanation:

Kinetic energy is given as half of the product of mass and the square of velocity of an object:

KE = \frac{1}{2}mv^2

where m = mass = 40 kg

v = velocity = 1 m/s

Hence, Mary's kinetic energy is:

KE = \frac{1}{2} * 40 * 1^2

KE = 20 * 1 = 20 J

She has a kinetic energy of 20 J.

8 0
3 years ago
What caused day and night on a planet
Volgvan

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The rotation of a planet around it's sun

7 0
3 years ago
What happenings when multiple forces act on an object
Dmitriy789 [7]

they are added vectorially. If htere is a resultant force, the thing acclerates. If they vectorially add to zero, thing doesn't move

6 0
2 years ago
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