<h2>
Answer: a definition of the term black hole</h2>
This text is clearly a definition of the term black hole, made by the American astrophysicist Neil deGrasse Tyson.
However, the discussions about this subject are not new, since Einstein's theory of relativity already defined what a black hole is.
In this sense, a black hole is described as a "singularity" that consists of <u>a region of the space in which the density of matter tends to infinity.</u>
Although this is hard to find possible for classical physics; following what relativity establishes:<em> bodies within a gravitational field follow a curved space path. Then the more a body enters the black hole, the more curved the space will become, until, in the center, it will become infinitely curved. </em>
if we are walking on a perfectly smooth ground which has no friction our force would simply cancel out the force reverted by the ground and we would fall.
We need it to help push out feet off the ground
Hope those helps :)
Answer:
50kPa and if the area decreases, the pressure increases
Explanation:
P=F/A; P=pressure, F=force, A=area
85000N/1.7 m^2 = 50000 N/m^2; Pa = Pascal = N/m^2
=50 kPa
Sugar molecules present at the bottom of solution due to more mass.
<h3>Which is more denser water or sugar?</h3>
Table sugar is more dense than water due to the presence of more mass of sugar molecule as compared to water. We know that denser objects has more mass so that's why sugar molecules present at the bottom of solution due to more mass.
Learn more about density here: brainly.com/question/1354972
First solve the area of the ow the window os the submarine
A = pi* (0.15)^2= 0.0707 m2
The pressure it can with stand is
P= F/A = 1.2x10^6 N/ 0.0707 m2 = 16976527.26 Pa
Using the formala
P = pgh
Where p is the density of water
G is the accelartion due to gravity
H is the depth
H = P/pg
=16976527.26 Pa/ (1000 kg/m3)(9.81 m/s2)
H = 1730.53 m
