Electrical kettle:
P = 2 KW = 2000 W
U = 200 V
⇒ I = P/U = 2000 / 200 = 10 A
We apply the Law of Ohm:
R = U / I = 200V / 10A = <u>20 Ω</u>
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Electrical heater:
P = 1 KW = 1000 W
U = 240 V
⇒ I = P/U = 1000 / 240 = 4,16 A
We apply the Law of Ohm:
R = U / I = 240V / 4,16A = <u>57,69 Ω</u>
<u>Answer:</u>
The device with the highest resistance is <u>the electric heater.</u>
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Answer:
1. Doppler Effect = The apparent change in frequency perceived when the source of sound is approaching or moving away from an observer
2. Beats = The vibration of an object at its natural frequency, caused by a force or wave of the same frequency
3. Resonance = a series of alternating reinforcements and cancellations produced by the interference of waves
4. Shockwave = The cone-shaped wave made by a particle moving faster than the speed of a wave in that medium
Explanation:
I hope this helps. :)
Answer:
science is the knowledge gained through observations and experimentations
Characteristics
consistency
observability
predictability
testability
tentativeness
components of nature are soil,atmosphere and radiation
Light striking the walls of the glass cylinder and reflecting in inside tube itself is a phenomenon known as total internal reflection.
<h3>What word best describes reflection, in your opinion?</h3>
Reflection is often synonymous with the verbs cogitate, contemplate, reason, hypothesize, and think. All of these expressions mean "using one's intellect, judgment, or inference faculties," but the word "reflect" means carefully considering a recollection.
<h3>What does it mean to give reflection some thought?</h3>
constant verb When you ruminate, you seriously consider something. Alternatives include thinking, analyzing, planning, and thinking. More phrases containing "reflect" Reflecting feelings is the act of observing a person's verbal and nonverbal signs for their emotions and feelings, then immediately communicating (or reflecting) those attitudes to the user or customer.
To know more about reflection visit:
brainly.com/question/8714151
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Given terms :
- time (t) = 90 minutes = 1.5 hour
As we know, Distance covered is equal to :
