Answer:
Explanation:
According to ohm's law, we know that:
Where,
- Voltage (V) = 2000 Volts
- Current (I) = 200 Amperes
Substituting the values, we get:
→ 2000 = 200 × R
→ 2000/200 = R
→ 10 = R
Hence,
- <u>Required Resistance = 10 </u><u>o</u><u>hm</u>
Answer:
Explanation:
Velocity is changing by a constant amount -10 m/s-in second of time.Anytime an object's velocity is changing,the object is said to be accelerating;it has an acceleration.
I think the correct answer from the choices listed above is option C. The formula that would represent the speed of the Toyota would be <span>T+10 mph= 60 mph. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
Answer:
There are many kinds of waves all around us. There are waves in the ocean and in lakes. Did you also know that there are also waves in the air? Sound travels through the air in waves and light is made up of waves of electromagnetic energy.
The wavelength of a wave describes how long the wave is. The distance from the "crest" (top) of one wave to the crest of the next wave is the wavelength. Alternately, we can measure from the "trough" (bottom) of one wave to the trough of the next wave and get the same value for the wavelength.
The frequency of a wave is inversely proportional to its wavelength. That means that waves with a high frequency have a short wavelength, while waves with a low frequency have a longer wavelength.
Light waves have very, very short wavelengths. Red light waves have wavelengths around 700 nanometers (nm), while blue and purple light have even shorter waves with wavelengths around 400 or 500 nm. Some radio waves, another type of electromagnetic radiation, have much longer waves than light, with wavelengths ranging from millimeters to kilometers.
Sound waves traveling through air have wavelengths from millimeters to meters. Low-pitch bass notes that humans can barely hear have huge wavelengths around 17 meters and frequencies around 20 hertz (Hz). Extremely high-pitched sounds that are on the other edge of the range that humans can hear have smaller wavelengths around 17 mm and frequencies around 20 kHz (kilohertz, or thousands of Hertz).
Explanation:
Answer:
1.49 m/s
Explanation:
The average speed is:
Where v is speed, s is distance and t is time. We are given with a distance of 18 km and time is 3.36 hours.
We'll be converting from km to meters and hours to seconds as standard unit for speed is m/s.
To convert the unit from kilometer to meter, we know that 1 kilometer equals to 1000 meters. Therefore, 18 kilometers will equal to 1000 * 18 meters which will equal to 18000 meters total.
To convert from hour to second, we know that 1 hour equals to 60 minutes. Therefore, 3.36 hours will equal to 60 * 3.36 = 201.6 minutes.
A minute equals to 60 seconds. Therefore, 201.6 minutes equal to 60 * 201.6 = 12096 seconds.
Finally, we have units in meter and second. We'll be able to calculate for average speed now by applying the formula above:
Therefore, Serina's average speed will be around 1.49 m/s