Answer:

Explanation:
The equation relating the the enthalphy, pressure and temperature is expressed as

Where P is the pressure, H is the enthalphy, and T is the temperature.
since the given values are

if we insert values, we arrive at

Answer:
The correct option is b) In galaxy clusters
Explanation:
A type of galaxy that appear elliptical in shape and have an almost featureless and smooth image is known as the elliptical galaxy.
An elliptical galaxy is three dimensional and consists of more than one hundred trillion stars which are present in random orbits around the centre.
Elliptical galaxy is generally found in the galaxy clusters.
Answer:

Explanation:
As we know that mass is the product of volume and density
so we will have

here we have

so we will have

so we will have


now let the position of Pluto is at origin so we have




Answer
Assuming the mass of the car, m = 43000 kg
initial speed u = 0
vertical distance moved, h = 8.8 m
spring constant k = 5 x 10⁵ N / m
acceleration of gravity = 9.8 m/s²
From law of conservation of energy ,
Gravitational potential energy at starting position =potential energy of the spring at maximum compression



x = 14.83 m
If the mass of the car is equal to 43000 Kg the spring is compressed to 14.83 m
Answer: D. 25s
Explanation:
speed = distance travelled/time taken
Or:
v = 
∴ t =
=
= 25s
Therefor, the answer is 25s or D.
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