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tamaranim1 [39]
4 years ago
8

Sodium = Na

Physics
2 answers:
irina [24]4 years ago
8 0
The answer is B. The symbol of Boron is B


Explanation : and its atomic number is 5
ad-work [718]4 years ago
6 0
Boron - B
Explanation
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Determine the farthest away a car can be at night so that your eyes can resolve the two headlights. Assume that the the diameter
Zigmanuir [339]

Answer:

The farthest distance is L_{max}=11.48 km

Explanation:

The angular resolution is mathematically represented as

              \theta = \frac{Z}{L} = \frac{1.22 \lambda}{d}

Where Z is the distance between the car head lamp with a value Z = 1.4 m

L is the distance between the eye and the car

\lambda is the wavelength  with a value 500 nm = = 500 *10^{-9}m

d is the diameter of the eye with a value  d = 0.50 cm = = \frac{0.50}{100} = 0.005m

   The maximum distance L_{max} is given as

              L_{max} = \frac{(1.4) *0.005}{1.22 * (500 *10^{-9})}

                       = 11.48*10^{3}m

                        =11.48 km

             

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8 0
4 years ago
Someone please help me
Basile [38]
Photosynthesis is the name given to the set of chemical reactions performed by plants to convert energy from the sun into chemical energy in the form of sugar. Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen. Many reactions occur, but the overall chemical reaction for photosynthesis is:

6 CO2 + 6 H2O + light → C6H12O6 + 6 O2
So it would be C, I hope this helped! :)
8 0
3 years ago
Due to the intense heat and pressure on the inner core, scientists believe it is a A.solid B.liquid C.semi-fluid D.gas
nexus9112 [7]
The Answer Is Solid, But The Inner Core Is Surrounded By A Liquid Outer Core
Hope This Helps
3 0
3 years ago
Read 2 more answers
Which statement is always true about objects which exert gravitational force on each other? (3 points)
kumpel [21]

Answer:

They have mass is always true.

8 0
3 years ago
A block of aluminum with a weight of 10 N is placed in a beaker of water filled to the brim. Water overflows. The same is done i
grigory [225]

Answer:

   No

Explanation:

Given that

Weight of the aluminium block = 10 N

Weight of the aluminium lead = 10 N

We know that

Weight = Volume x Density x g

Wt= V x ρ x g

The density of aluminium ,ρ=2810 kg/m³

The density of lead ,ρ=11343 kg/m³

From above we can say that density of lead is more than the density of aluminium that is why the volume of the aluminium will be more than the volume of the lead for same weight.So aluminium will displace the water but lead will not displace the water.

So the answer is ,lead does not displace the water.

3 0
3 years ago
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