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victus00 [196]
3 years ago
8

Why do use red color for firing vehicles ??

Chemistry
2 answers:
natali 33 [55]3 years ago
8 0

Answer:

Because red was the most expensive color of paint, volunteers used red to make their fire trucks stand out as a source of pride. ... In the early 1900s, Ford only offered cars in black, so red fire trucks would be sure to stand out amidst the sea of black vehicles on the road.

hope this answer helps u

pls mark as brainliest .-.

Paha777 [63]3 years ago
7 0

Answer:

Red was originally selected for the same reason. Over a century ago, red was a nice bright color that set fire apparatus apart from most vehicles on the road. Red became traditional, and most fire departments stayed with it. Some firefighters like yellow trucks, some prefer traditional red.

You might be interested in
How many grams of phosphorus are in a sample containing 10^30 phosphorus atoms?
san4es73 [151]

Answer:

18.1 g

 

Explanation:

You know that the atomic weight of phosphorus is equal to  

30.794 u

, where  

u

represent the unified atomic mass unit.

The unified atomic mass unit is equivalent to  

1 g/mol

, but let's take the long road and prove that identity.

Now, the unified atomic mass unit is defined as  

1

12

th

of the mass of a single unbound carbon-12 atom in its ground state and is equivalent to

1 u

=

1.660539

⋅

10

−

24

g

This means that the mass of one phosphorus atom will be

30.974

u

⋅

1.660539

⋅

10

−

24

g

1

u

=

5.14335

⋅

10

−

23

g

You know that one mole of any element contains exactly  

6.022

⋅

10

23

atoms of that element - this is known as Avogadro's number.

Well, if you know the mass of one phosphorus atom, you can use Avogadro's nubmer to determine what the mass of one mole of phosphorus atoms

5.14335

⋅

10

−

23

g

atom

⋅

6.022

⋅

10

23

atoms

1 mole

=

30.974 g/mol

Finally, if one mole of phosphorus atoms has a mass of  

30.974 g

, then  

0.585

moles will have a mass of

0.585

moles

⋅

30.974 g

1

mole

=

18.1 g

From: https://socratic.org/questions/the-atomic-weight-of-phosphorus-is-30-974-u-what-is-the-mass-of-a-phosphorus-sam

3 0
3 years ago
What is the name for a nuclear particle that has about the same mass as a neutron, but with a positive charge?
KATRIN_1 [288]

proton is the name for a nuclear particle that has about the same mass as a neutron, but with a positive charge.

3 0
3 years ago
Plants give off oxygen as part of photosynthesis. Explain the impact of this process on humans?
PolarNik [594]

Answer:

i think it haven't impact because oxygen is very sensitive for our life and from plants there is so many kinds of food sources soo

7 0
3 years ago
What causes the shielding effect to remain constant across a period?
Ivanshal [37]
Electrons are added to the same principal energy level.
5 0
4 years ago
A mixture of helium and neon gases has a density of 0.2460 g/L at 35.2°C and 288 torr. What is the mole fraction of neon in this
pshichka [43]
We know the volume of one mole of gas at 273 K and 760 Torr is 22.4 L. Using
(PV)/T = constant
We can calculate the volume of the gasses at the given conditions:
(P₁V₁)/T₁ = (P₂V₂)/T₂
(760 * 22.4) / 273 = (288 V₂) / 308.2
V₂ = 66.7 L
Mass of He: 4
Mass of Ne: 20
Fraction of Ne: x
Fraction of He: 1 - x
avg density = (∑(component fraction × component mass))/volume
0.2460 = (20x + 4(1 - x))/ 66.7
x = 0.775
6 0
4 years ago
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