PHYSICS HIGH SCHOOL

According to Levin, how can black holes be investigated?

Answers

Answer 1
Answer: By observing their effect on their surroundings.

Related Questions

An opaque material absorbs some light frequencies that shine on it and reflects others. True False please help me
The distribution of total body protein in healthy adult men is approximately Normal, with mean 12.3 kg and standard deviation 0.1 kg. If you take a random sample of 25 healthy adult men, what is the probability that their average total body protein is between 12.25 and 12.35 kg?
The substance that gets broken down in a homogeneous mixture is the .
What is the largest speed this projectile can have without causing the cable to break?
two cylinders p and q are made of copper the height of p is twice the height of q . the diameter of p is half the diameter of q

Whose touch turned all to gold, Aurum or Midas? a) Aurum b) Midas c) Both d) Neither

Answers

Answer:Midas

Explanation: As midas was a king who was blessed by dionysis the god of wine and festival , and since in returns for caring for a satyr he found in his backyard who was a follower of dionysis the go blessed him with the gold touch. thus answer is midas

What form of energy transforms to what other form when you turn on a steam iron?

Answers

Electrical to heat
Electricity is going into it and heat is coming out

Answer:

Electrical energy to thermal energy.

Plato

How much time will it take a jogger to travel 12 kilometers at a Constant speed of 4 m/s

Answers

12km = 12000m

12000m / 4 m/s = 3000s

just under one hour

Name the physical quantity measured by the velocity-time graph?

Answers

The so-called "velocity-time" graph is actually a "speed-time" graph.  At any point
on it, the 'x'-coordinate is a time, and the 'y'-coordinate is the speed at that time.

'Velocity' is a speed AND a direction.  Without a direction, you do not have a velocity,
and these graphs never show the direction of the motion.  It seems to me that it would be
pretty tough to draw a graph that shows the direction of motion at every instant of time,
so my take is that you'll never see a true "velocity-time" graph. 

At best, it would need a second line on it, whose 'y'-coordinate referred to a second
axis, calibrated in angle and representing the 'bearing' or 'heading' of the motion at
each instant. The graph of uniform circular motion, for example, would have a straight
horizontal line for speed, and a 'sawtooth' wave for direction.

A beam of white light goes from air into water at an incident angle of 84.0∘. At what angles are the red 660 nm and violet 410 nm parts of the light refracted? Red light in water has an index of refraction equal to 1.331 and that of violet light is 1.342.

Answers

The angle at which the light got refracted is known as the angle of refraction. The angle of refraction of red light is 48.3°. While the angle of refraction of  Violet light is 47.8°.

What is snell law?

"The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given color and for a given set of media,

According to Snell's law. The formula for Snell's law is

\rm {n= (sini)/(sinr) }

i is the incidence angle

r is the refractionangle.

n is the refractive index of the medium

For red light,

\rm {n= (sini)/(sinr) }\n\n\rm {1.331= (sin84^0)/(sinr)\n

\rm{sinr=(sin84^0)/(1.331)}

\rm r = sin^(-1)(0.7472)

\rm r = 48.3^0\rm r = 47.8^0

Hence the angle of refraction of red light is 48.3

For violet light,

\rm {n= (sini)/(sinr) }\n\n\rm {1.342= (sin84^0)/(sinr)\n

\rm{sinr=(sin84^0)/(1.342)}

r = sin^(-1)(0.7411)

Hence the angle of refraction of  Violet light is 47.8°.

To learn more about snell's law refer to the link;

brainly.com/question/10112549

Answer:

Red light has an angle of refraction of 48.3°.

Violet light has an angle of refraction of 47.8°.

Explanation:

From Snell's law of refraction, the refractive index is the ratio of the sine of the angle of incidence to the sine of the angle of refraction.

n=(\sin i)/(\sin r)

For red light in water,

1.331=(\sin 84)/(\sin r)

\sin r=(\sin 84)/(1.331)=0.7472

r=\sin^(-1)0.7472=48.3}

For violet light in water,

1.342=(\sin 84)/(\sin r)

\sin r=(\sin 84)/(1.342)=0.7411

r=\sin^(-1)0.7411=47.8}

What is different about parasitism compared to the other biological relationships such as mutualism, predation, competition, and commensalism?

Answers

Answer: parasitic organisms cause harm to other organisms.

Answer:

parasitic organisms cause harm to other organisms.

Explanation:
Other Questions
a gust of wind blows an apple from a tree. As the apple falls, the gravitational force on the apple is 2.25N downward and the force of the wind on the apple is 1.05N to the right. Find the magnitude and the direction of the net force on the apple.
A football is kicked with a velocity of 18 m/s at an angle of 20. What is the balls acceleration in the horizontal direction as it flies through the air
The SI base unit for mass is the _____. A. kilogram B. newton C. gram D. slug E. pound
The galactic center of the milky way is located in the direction of the constellation?A. Cassiopeia B. Aquarius C. centaurus D. Sagittatius How do stars locate in the galactic disk orbit the galactic center? A. they do not orbit the galactic center. B. they move in the circular orbits around the galactic center. C. they bob up and down as they orbit the galactic center. D. they orbit in elliptical orbits with random orientations.