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Naily [24]
3 years ago
14

what is a possible unit for the product VI, where V is the potential difference across a resistor and I is the current through t

he same resistor?
Physics
1 answer:
liq [111]3 years ago
5 0
Recall this equation for a device in a direct current circuit:
P = IV
P is the power dissipated by the device, I is the current through the device, and V is the voltage drop of the device.

If we choose to use the ampere as the unit of current and the volt as the unit of voltage, then the product of the current and the voltage will give the power with watts as the unit.
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An airplane cruises at 900 km/h relative to the air. It is flying from Denver, Colorado, due west to Reno, Nevada, a distance of
Ulleksa [173]

Answer:

26.5 minutes

Explanation:

When the airplane is flying due West from Denver to Reno, the due-East wind with speed of 80km/h would reduce the ground speed by 80 km/h.

Its Denver to Reno ground speed is 900 - 80 = 720 km/h

The time it takes to cover 1200km at this speed is 1200 / 720 = 1.67 hours

On the other hand, when it returns from Reno to Denver in the due-East direction, the due-East wind with speed of 80km/h would add to the ground speed by 80 km/h

Its Reno to Denver ground speed is 900 + 80 = 980 km/h

The time it takes to cover 1200 km at this speed is 1200 / 980 = 1.22 hours

The difference it flight time would be 1.67 - 1.22 = 0.44 hours or 26.5 minutes

4 0
3 years ago
What a measurement? Write down t its importance inn an our daily life.​
balu736 [363]

Answer:

Time, size, distance, speed, direction, weight, volume, temperature, pressure, force, sound, light, energy—these are among the physical properties for which humans have developed accurate measures, without which we could not live our normal daily lives. Measurement permeates every aspect of human life.

8 0
3 years ago
Epithelial tissues often form the lining of organs and secrete substances such as digestive enzymes.
krek1111 [17]

Answer:

ohh yes. answer is true

6 0
2 years ago
Read 2 more answers
It takes Serina 0.25 hours to drive to school. Her route is 21 km long. What is Serina’s average speed on her drive to school?
mario62 [17]
Speed = distance / time = 21 / 0.25 = 84 Km/hr
7 0
2 years ago
When light, starting in air, is shone on a piece of glass, what effects are you likely to observe? a. reflection b. refraction 3
PolarNik [594]

Answer:

refraction

Explanation:

When a ray of light passes from one medium to another medium, it deviates from its path, this phenomenon is called refraction.

When the ray passes from rarer medium to denser medium it bends towards the normal and if the ray passes from denser medium to rarer medium, it bends away from the normal.

Here, the ray passes from air to glass, so refraction takes place.

5 0
3 years ago
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