The correct answer to
the question that is stated above is the fourth option which is :<span>Blue star.
Blue stars are uncommon but very bright. It has an average luminosity of </span>1,400,000 ( the Sun =1) with a strong UV continuum. The blue stars average mass is 60 ( the Sun =1) and its average radius is 15 <span>( the Sun =1).</span><span>
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Answer:
close to the mirrors surface
Explanation:
this is because angle of incidence equals angle of reflection
Answer:
0.68 m
Explanation:
Since the volume of water is 310 L, and we know that 1 litre = 1 dm³. So the volume of water is V = 310 dm³. Since this volume of water is the volume of water the cubical steel tank can contain, it equals the volume of the cubical steel tank.
We know that the volume of the cubical steel tank V = L³ where L is the length of side of the cube on the inside.
So the length of side of the cube L = ∛V = ∛310 dm³ = 6.77 dm = 6.77 dm × 1m/10 dm = 0.677 m ≅ 0.68 m
So, the smallest possible inside length of the tank is 0.68 m
Answer:
Temperature of neon gas = 875 K
Explanation:
Using Ideal gas equation as:
PV=nRT
Where,
P is the pressure of the gas
V is the volume of the gas
n is the number of moles
R is the gas constant
T is the temperature
Also,
The ideal gas equation can be written as:
Thus,
As Density and Pressure is constant , We only consider molar mass and Temperature which are directly proportional according to the equation above as:
Data given for He:
Temperature (T₁) = 175 K
Molar mass of He (M₁)= 4 g/mol
For Ne:
Temperature (T₂)= ?
Molar mass of He (M₂)= 20 g/mol
Applying in the equation,
<u>Temperature of neon gas = 875 K</u>