Answer:
for air focus is 12 cm
when immersed in water focus is 39 c.m
Explanation:
we know lens maker formula
so for air n=1 and n2=1.5
now putting the value in lens maker formula now [/tex][/tex]
when lens is immersed in water then n1=1.3 and n2=1.5
putting the value in lens maker formula
now [/tex]
Answer:
The ratio of apparent increase in volume of the liquid per unit rise of temperature to the original volume is called its coefficient of apparent expansion. ... Thus a liquid has two coefficients of expansion. Measurement of the expansion of a liquid must account for the expansion of the container as well.
As you approach the event horizon, your body would be pulled towards the black hole. It's a process called sphagettification.
As for what you see, that is hard to explain without showing a video, at least for me, but you would see this black hole (ha) and whatever is outside starts to flatten and condense (from your POV) then you would fall into the black hole and then it's complete blackness.
→ The tension on the cable is 890 N.
The free body diagram is drawed below. Applying the second law of newton:
(you have to transpose the T forces to the 'y' axis). After that:
89 x 10 is the Weight Gravitational force (Mass times gravity). Therefore:
→ See more on:
brainly.com/question/19534327
Answer:
Explanation:
Average speed is always: ( total distance traveled ) / ( time elapsed )
The time for the walk is +150+%2B+30+%2B+140+=+320+ s
The distance traveled is +160+%2B+210+=+370+ m
( total distance traveled ) / ( time elapsed ) = +370+%2F+320+=+1.156+ m/s