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dedylja [7]
3 years ago
6

SOMEONE HELP PLEASE SORRY

Physics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

Just red light is reflected. Even if you shine a red laser at a blue piece of paper, only red light is reflected. ... The dot you see will probably always be red. If you do this in a bright room, you might trick yourself.

Explanation:

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A 1500-W electric heater is plugged into the outlet of a 120-V circuit that has a 20-A circuit breaker. You plug an electric hai
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Answer:

b) 900 W

Explanation:

The breaker trips when the current is equal to 20 A. The power (P) is the ddp (V) multiplied by the current. So, for the electric heater, the current is:

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1500 = 120*i

i = 12.5 A

So, to become in 20 A, it's needed 7.5 A, which must come from the hairdryer. Its power must be:

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A rock is thrown horizontally from a building at 15 m/s. It hits the ground 45 m from the base of the building. How high was the
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Explanation:

hope this helps!

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Two aluminum soda cans are charged and repel each other, hanging motionless at an angle. which of the forces on the left can has
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Assuming that the can is motionless, we can then assume that the vertical component of T = mg and that Fe = the horizontal component of T. 
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3 years ago
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The study of ____ is called kinematics
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Motaion would be it have a good day
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Test questions measure recall; matching concepts with their definitions measures recognition.

<u>Explanation: </u>

According to Psychology our brain remembers everything what we learn but the understanding and remembering the right answer for the right question needs training and understanding ability. So in order to enhance the ability of recalling and recognizing among the students, the concept of test questions and matching with definitions are used in curricular activities.

As the students will be learning different terms, definitions, methods and different subjects, they should be able to distinguish among different definitions as well as they should recall the things they have learnt. So the answers for the test questions will help to recall the topics learnt by the students while the matching concept will help the students to recognize each definition with their terms.

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3 years ago
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