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Roman55 [17]
4 years ago
11

Which temperature scale has the highest value for the boiling point of water?

Physics
1 answer:
drek231 [11]4 years ago
6 0

Answer: The correct answer is kelvin.

Explanation:

The expression for the conversion of degree Celsius to Kelvin is as follows:

K= 273 + degree Celsius

The expression for the conversion of degree Celsius to Fahrenheit is as follows:

F=(Degree Celsius\times \frac{9}{5})+ 32

The freezing point of water on Celsius degree is zero degree Celsius. The freezing point on kelvin scale is 273.15 K.

The boiling point of water on Celsius degree is 100 degree Celsius. The boiling point on kelvin scale is 373.15 K.  The boiling point on Fahrenheit scale is 373.15 K.

Therefore, Kelvin scale has the highest value for the boiling point of water.

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Express 9/15 as a percentage
Zanzabum
The answer is 60%. If you divide the 9 and 5, you will get 0.6. So you just move the decimal point to the right twice. (:
7 0
3 years ago
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A 0.25 kg baseball is in contact with a bat for 0.0075 s and exerts a force of 18,500 N. What impulse is delivered to the ball?
Alecsey [184]
The answer is 138.75 kgm/s

Impulse (I) is the multiplication of force (F) and time interval (Δt): I = F · Δt
It is given:
m = 0.25
F = 18,500 N = 18,500 kgm/s²
Δt = 0.0075 s
I = ?

I = F · Δt = 18,500 5kgm/s² * 0.0075 s = 18,500 * 0.0075 kgm/s² * s = 138.75 kgm/s
3 0
3 years ago
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Bullets from two revolvers are fired with the same velocity. The bullet from gun #1 is twice as heavy as the bullet from gun #2.
IrinaVladis [17]

Answer:

option C

Explanation:

Let mass of the bullet be m and velocity be v

mass of gun be M and bullet be V

now,

using conservation of momentum for gun 1

(M+m) V' = 2 mv + 3 MV

V' = 0

3 M V = - 2 mv

momentum of gun 1 =- 2 mv---------(1)

now for gun 2

(M+m) V' = mv + MV

V' = 0

M V = - mv

momentum of gun 1 = -mv-----------(2)

dividing equation (1) by (2)

\dfrac{P_m1}{P_m2} = \dfrac{- 2mv}{-mv}

\dfrac{P_m1}{P_m2} = \dfrac{2}{1}

the correct answer is option C

7 0
3 years ago
When a strip of zinc metal is added to a test tube of hydrochloric acid, the liquid forms bubbles, and the test tube feels hot.
Roman55 [17]

Answer:

A

Explanation:

When a strip of zinc metal is added to a test tube of hydrochloric acid, the liquid forms bubbles, and the test tube feels hot. The bubbles are a result of the formation of hydrogen gas.

Then the reaction releases heat.

7 0
3 years ago
What is the water pressure at a depth of 30m in pascals?
vaieri [72.5K]

❤❤❤❤❤❤❤❤❤❤❤❤❤❤

The water pressure at depth h from the water surface is obtained from the following equation.

Pressure = (density) \times (gravity \:  \: acceleration) \times (depth \:  \:  from \:  \: the \:  \: water \:  \: surface) \\

density = 1000 \:  \:  \frac{kg}{ {m}^{3} }

gravity \:  \: acceleration = 10 \:   \:  \frac{m}{ {s}^{2} }

depth \:  \: from \: \: the \:  \: the \:  \: water \:  \: surface = 30 \:  \: m \\

______________________________________

P = 1000 \times 10 \times 30

P = 300,000 \:  \: pascals

❤❤❤❤❤❤❤❤❤❤❤❤❤❤

6 0
3 years ago
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