PHYSICS HIGH SCHOOL

Edwin Hubble categorized galaxies according to theirA. shapes.
B. colors.
C. food supplies.
D. inhabitants.

Answers

Answer 1
Answer:      Your answer would be that Hubble categorized galaxies by their shape.

Related Questions

Please help on this one ?
The LIGHT/DARKcontrol of an automatic toaster is placed at a particular setting. The toast at this setting will always be the same color because the toaster uses
What is the centripetal force that allows a car to move around a sharp curve in a roadway?
in a series circuit: 1) the relationship between total resistance and individual resistances is 2) the relationship between total voltage and individual voltages is 3) the relationship between total current and individual currents is
Consider these scenarios. A pink box with containing the words Scenario 2 You are about 7 meters away from a metal bar that is struck with a drumstick. The sounds travels through the air to your ear. In which of these scenarios would the sound of the drumstick hitting the metal bar get to you in the least amount of time? Explain your answer.

What is big and green with horns and jumps high?

Answers

Answer:

Bullfrog

Explanation:

There is a species of frogs generally found in America known as Bullfrog. Bullfrog has horns. These types of frogs are very big and they can jump very high.

Thus, answer is Bullfrog.
the answer would be a frog!

Discuss how lawmakers could use scientific knowledge to help them make decisions that would benefit society.

Answers

Scientific knowledge is very firm in its facts and pieces of evidence that create a more precise definition. If lawmakers are able to use the scientific method in making a decision, it will make a big change and will be beneficial to the society. The set of rules will be more arranged, specific and restrictive that might change justice, tax, and law.

Which air pressure reading is likely an indicator of clear weather?a. 900 mb
b. 950 mb
c. 1000 mb
d. 1050 mb

Answers

1050 mb of air pressure is likely an indicator of clear weather. The correct option among all the options given in the question is option "d". In reality, higher pressure is mostly associated with clear and good weather while stormy or bad weather is often associated with low air pressure. 

4 Suggest four ways in which participating in physical activities can build healthy relationship? 5.Show in two ways the influebces of values on the choices of goals you set as your life goal❤

Answers

Answer:

  • Increases levels of well-being neurotransmitters
  • Improves fitness
  • Improves mental health
  • Reduces the risk of developing diseases

Explanation:

Performing physical activities helps to build a healthy relationship with yourself, in the sense that physical activity promotes health at all levels. Health is a set of physical, mental and social well-being, so physical activity reaches all these levels and increases the quality of life for a person as a whole.

There are several types of physical activities that can be performed and you can choose the one that best fits your preferences and routine. A walk for example can be done in any safe place and at any time and it already helps in improving physical conditioning, in receiving serotonin and endorphins, in reducing blood pressure and protecting the heart and in improving mental health.

So the ideal is for each person to set their own goals in relation to their health and seek to achieve them, either to have a better quality of life, to socialize more with people, to prevent diseases, etc.

Physical exercise helps build relationship by:

  • Reducing one's  stress and good level of mental health.
  • One can be able handle anxiety and less mental health problem.

What are Exercise?

This is known to be any physical activities such as walking, running, etc., that is often done so as to keep the body fit.

It is very important when as it helps one to maintain a good balance of mental health. As a person moves their body, there is the release of endorphins that functions to make us feel good and helps handle the effects of stress and anxiety. The more a person exercise, the less mental health cases and more happier relationships.

Note that Values are the drive force of  your actions and they push or motivate as you set your life goals. They help to eliminate any obstacle in term of foreign ideas that are against one's value and it keeps one's focus on the goal.

Learn more about Exercise from

brainly.com/question/1365564

i need to to plan an investigation to answer the the following question....which material is best at keeping a beaker of water hot: foil, paper or foam

Answers

Foil would be the best option. Paper does not insulate and is very thing, while foam is better at retaining cold than heat. The foil with heat up with the water and give energy back to the system.
 
-- Get three beakers, all with identical shape and size.

-- Get a lab thermometer if possible ... the kind that's made of
glass and is like a foot long.  If you can get 2 or 3 of them to
work with, that would be even better.
If you do get to use more than 1 thermometer, then whatever kind
they are, they should all be the same thing.

-- Get a timer or a clock that's easy to read.

-- Get a fresh pad of paper and a few pens.

-- Draw three long columns from the top of the paper to the bottom.
At the top of one column, write "Foil".  At the top of another column,
write "Paper, and at the top of the third column, write "Foam".

-- On the lines down one side of the paper, write  "0",  "10",  "20,  "30",
"40",  "50", ... and keep going all the way to, I'd say", at least  "150".

Now you're ready to investigate.
======================================

-- Wrap one beaker with foil, one with paper, and the third one
with foam.  Put a rubber band or a strip of tape around each one
to keep the wrapping in place. 
This is not easy.  In order to get any meaningful conclusion from your
investigation, all three wraps should have the same thickness !
Any material that's 6 inches thick will certainly be a better insulator
than any other material that's only as thick as a sheet of paper.
You want the results of your investigation to be caused only by
the kind of material ...NOT by how thick it is.

-- Set up your beakers in a place where they can stay for a few hours,
and with some space between them.  It should be a place where there's
not too much wind, and where the temperature in the room won't make
any sudden changes.

-- Boil a teapot of water.  When the water boils, quickly pour the same
amount of water into all 3 beakers, and start the timer or the clock.

-- Take the temperature of the water in each beaker, and write it down
on the top line of your paper ... the one labeled " 0 " . 
Do this very carefully.  Don't move the beakers. Don't take anything out
of them, and don't put anything into them except the thermometer. 
If you were able to find three lab thermometers to use, then leave one in each
beaker, and just read them.  You don't need to move or touch anything
as long as your investigation lasts.

-- Take the temperature of the water in each beaker every 10 minutes.
Write each one down on the paper, in the space under the proper wrap
material for that beaker, and on the line for the proper time of the reading.

-- Keep reading and writing every 10 minutes.
If your paper is numbered up to "150", then it'll take you 2 and 1/2 hours,
and you'll have lots of delicious numbers to play with.

When you're done, before you take the data into your office to analyze it,
unwrap the beakers and clean and dry them.  Also, any other equipment
that you borrowed for your investigation, clean it and return it to whoever
lent it to you.  Say "Thank you" and give them a piece of chocolate.

Now, you can draw beautiful graphs with your numbers.  The graph will
have three lines on it ... one for each material.  The lines will all start out
at the same point, and then one will drop fast, one will drop slow, and one
will drop in between the other two.  I don't know which one will drop the
slowest  That's the whole point of your investigation.  The slowest one
is the winner ... it's the best insulator, no matter whether you're trying
to keep something hot OR cold.

One thing that might surprise you when you graph your numbers . . . the
lines of temperature are NOT straight.  The lower each temperature gets,
the slower it cools more.  Each line begins dropping fast, but drops slower
and slower as time goes on, and heads for a smooth landing at the bottom
as it approaches the temperature in the room.

You're welcome, and good luck.
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A rectangular barge 7 m long and 2 m wide floats in fresh water. How much will the barge sink when loaded with 600 kg of sand? Show all calculations leading to an answer.

Answers

You must apply Archimides' principle.

The barge will sink until the sum of the forces on it equals zero.

The two forces are the weight of the barge (with sand) and the buoyancy force, the force exerted by the liquid (fresh water) on the barge.

Then, weight of the barge with sand = m*g = 600 kg * g

Buoyancy force = density of the fluid * Volume of displaced fulid * g

Then, m*g = density of the fulid * Volume of displaced fluid * g

m*g = df * Vf * g

m = df*Vf => Vf = m/df = 600 kg / 1 000 kg/m^3 = 0.6 m^3

The volume of the displaced fluid equals the volume of the portion of the barge sinked, wich is the area of the rectangular base times the depth to which it sinked>

7m*2m*H = 0.6 m^3 => H = 0.6 m^3 /[14 m^2] = 0.043 m = 4.3 cm

Answer: 4.3 cm







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