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3 years ago

In which temperature scale is the temperature for water boiling the highest number? A. Kelvin B. Joule C. Celsius D. Fahrenheit

1 answer:

6 0

Correct answer: <span>A. Kelvin

In fact, in Celsius scale, water boils at </span> $100^{\circ}C$ .

In Fahrenheit scale, this value corresponds to
$T(^{\circ} F)= \frac{9}{5} (100^{\circ} C)+32 =212 ^{\circ} F$

while in Kelvin scale it corresponds to
$T(K)=100^{\circ} +273.15 = 373.15 K$

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If raindrops are falling vertically at 8.30 m/s, what angle from the vertical do they make for a person jogging at 2.07 m/s?

dmitriy555 [2]

Answer:

∆ = 14°

Explanation:

Let the angle be ∆

Opposite = 2.07 m/s

Adjacent = 8.3 m/s

Tan ∆ = opposite / adjacent

Tan ∆ = 2.07 / 8.3

Tan ∆ = 0.2494

∆ = ArcTan (0.2494)

∆ = 14°

The angle from vertical the raindrops make for a person jogging is 14°

4 0

3 years ago

1.) Using Ohm’s law, explain how voltage changes in relation to current, assuming that resistance remains constant.

Harrizon [31]

1.) Ohm's law is understood as I = V/R. Given that resistance is constant, then voltage changes directly proportional to current.

2.) The more current that passes through a lightbulb, the brighter it glows. The higher the current, the higher the power, where power determines the brightness of a bulb.

3.) A bulb has a specific limit to how much power (Watts) it can handle. Going over the limit would cause the bulb to burn out.

4.) When a bulb burns out, no current will be able to pass through the filament.

4 0

3 years ago

Read 2 more answers

which of these statements best explains why the difference between summer and winter temperatures is greatet in Russia thanin FL

MaRussiya [10]

I don't know your statement, but one explanation for this is that Russia is mostly located on land, away from water and Florida is surrounded by water.

Water takes up the heat from the environment, so it has the effect of making the temperatures of objects around it milder: cooling down when hot, warming up when too cold.

5 0

3 years ago

Relative density of mercury is 13600 what does it mean

zvonat [6]

Answer:

relative density is the density divided by some reference density.

for liquids like mercury the reference density is most likely water, so

relative density = density mercury / density of water = 13600

8 0

3 years ago

A charge of +0.001 C is 1 m to your right and another charge of +1000 C is 1 m to your left. You are holding a charge of −1 C. W

almond37 [142]

Answer:

C and D

Explanation:

Charge on right = +0.001 C

Charge on left = 1000 C

Charge held in between = -1C

Ratio between right and left charge:

$=\frac{1000}{.001}\\\\=1\times 10^6$

Which shows charge on left exerts 1,000,000 times more force then charge on right

Charge on left is 1000 times greater in magnitude than charge held between and charge held between is 1000 times greater in magnitude than charge on right. So the magnitude of the force on the charge you are holding would be the same if it were +1 C instead of −1 C.

8 0

3 years ago