If the universe is sufficiently dense, gravity will someday pull it all back together in an event called ________, sort of like
1 answer:
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Answer:
T= 354.65 N
Explanation:
Given that
ρ= 7800 kg/m³
L= 58 cm
d=1.34 mm
f= 311 Hz
T= Tension
Speed of wave ,V
V = f λ
V = f L
V= 311 x 0.58 m/s
V=180.38 m/s
Area of cross sectional
A= πr² mm²
A= 3.14 x 0.67² mm²
A=1.41 mm²
Mass = Density x Volume
m=0.0109 kg/m
Tension ,T
T= 0.0109 x 180.38² N
T= 354.65 N
Answer:
Explanation:
Given:
- volume of oil in the cylinder,
- volume of the oil level when the ice is immersed,
- the volume level of oil when the ice melted,
<u>Now, therefore the volume of ice:</u>
<u>Now the volume of water:</u>
As we know that the relative density is the ratio of density of the substance to the density of water.
<u>So, the relative density of ice:</u>
.....................(1)
as we know that density is given as:
now eq. (1)
where, m = mass of the water or the ice which remains constant in any phase