Yes I believe it would I think the answer is D
Answer:
Explanation:
V = Volume of air = 
P = Power = 10 W
t = Time = 1 hour
m = Mass of air = 2 kg
Specific volume is given by
The specific volume at the final state is
Work done is given by
The energy transfer by work, is
Change in specific internal energy is given by
The change in specific internal energy of the air is
Answer: The orbital speeds of stars far from the galactic center are surprisingly high.
Dark matter is a type of matter, whose composition is unknown and which corresponds to 80% of the matter in the universe. Its name refers to the fact it does not emit or interact with any type of electromagnetic radiation, being completely transparent throughout the electromagnetic spectrum.
<h2>However,
it interacts with the known matter through gravity. </h2><h2 />
In this sense, it is believed that the Milky Way has 90% dark matter and only 10% ordinary matter (known matter). Because, like gravity, dark matter can not be observed directly, however its existence is inferred through the movement of the stars far from the center and the cosmic dust within the galaxy.
An initiator is someone who starts something. Example: She initiated the fight.
m = mass of the car = 1500 kg
we know that 1 mph = 0.45 m/s
hence
v = speed gained by the car = 40 mph = 40 x 0.45 m/s = 18 m/s
since the car is gaining speed here , hence the energy need is same as the kinetic energy gained by the car
kinetic energy is given as
KE = (0.5) m v² where m = mass , v = speed
inserting the above values in the formula
KE = (0.5) (1500) (18)²
KE = 2.43 x 10⁵ J
we know that , 1 J = 2.78 x 10⁻⁷ kwh
hence
KE = (2.43 x 10⁵) (2.78 x 10⁻⁷)
KE = 0.068 kwh
hence the energy needed is 0.068 kwh
