PHYSICS HIGH SCHOOL

The Articles of Confederation established a strong national government.
a. True
b. False

Answers

Answer 1
Answer: It is false that the Articles ofConfederation established a strong national government. Because it wasestablished after the war. Federalists agree tothe constitution and believe that a strong central government is needed for thepreservation of the union. They focused and criticized the flaws of Articles ofConfederation and view their rivals as having no solutions. The leaders in thisgovernment are strong and well organized. Anti-Federalists on the other hand,agree to the weak federal government and fully supported the bill of rights;they further argued that the constitution being proposed by the federalistscontain no protection of the rights of the individual. They are skeptical onthe constitution as it is being influenced by the colonialism. 
Answer 2
Answer:

Answer:

false

Explanation:

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If you start skating down this hill, your potential energy will be converted to kinetic energy. At the bottom of the hill, your kinetic energy will be equal to your potential energy at the top. What will be your speed at the bottom of the hill?

Answers

Your potential energy at the top of the hill was (mass) x (gravity) x (height) .

Your kinetic energy at the bottom of the hill is (1/2) x (mass) x (speed)² .

If there was no loss of energy on the way down, then your kinetic energy
at the bottom will be equal to your potential energy at the top.

(1/2) x (mass) x (speed)² = (mass) x (gravity) x (height)

Divide each side by 'mass' :

(1/2) x (speed)² = (gravity) x (height) . . . The answer we get
will be the same for every skater, fat or skinny, heavy or light.
The skater's mass doesn't appear in the equation any more.

Multiply each side by 2 :

(speed)² = 2 x (gravity) x (height)

Take the square root of each side:

Speed at the bottom = square root of(2 x gravity x height of the hill)

We could go one step further, since we know the acceleration of gravity on Earth:

Speed at the bottom = 4.43 x square root of (height of the hill)

This is interesting, because it says that a hill twice as high won't give you
twice the speed at the bottom.  The final speed is only proportional to the
square root of the height, so in order to double your speed, you need to
find a hill that's 4 times as high.

Ceres is BEST classified as a(n) ___.a. asteroid
b. meteoroid
c. dwarf planet
d. Kuiper Belt object

Answers

Ceres is best classified as a dwarf planet. Ceres is located in he asteroid belt. Ceres is much closer to Earth than Pluto and it was discovered in the year of 1801.
Option C.

Ceres is considered the smallest dwarf planet of the solar system.

Does sit-ups reduce belly fat?

Answers

yes it does because it exercises the muscles :)) 
It does. When you are doing sit ups, it makes your core work and if you have a good strong core then you are burning fat. 

According to Newton's 2nd law of motion, Jim can throw a _____ farther than a _____. tennis ball, basketball can of soda, liter bottle of soda chair, couch all of the above

Answers

Answer:

All of the above

Explanation:

According to Newton's second law of motion,

Force = Mass * Acceleration

If a certain force is applied on objects of different mass, the lighter object will travel farther and faster. All the options in the question have pairs where one object is lighter than other.

So, Jim can throw a tennis ball farther than a basketball. Jim can throw a can of soda farther than a liter bottle of soda and he can throw a chair farther than a couch.
According to Newton's 2nd law of motion, Jim can throw a tennis ball farther than a basketball. The rest of the choices do not answer the question above.

scientists hypothesize that oxygen began to accumulate in earth's atmosphere of living things with the ability to?

Answers

According to geological data, oxygen production by photosynthetic microbes began about 2 billion years ago. This made it possible for oxygen to build up in the atmosphere, which eventually led to a switch from reducing to oxidizing circumstances.

What accumulates in earth's atmosphere of living things?

A basic type of bacteria eventually evolved that could survive by using the energy from the Sun and the carbon dioxide in the water to produce oxygen as a byproduct. As a result, the atmosphere started to fill up with oxygen as carbon dioxide levels were falling.

Cyanobacteria underwent a stunning transformation at least 2.4 billion years ago, which was made possible by their evolution.

They evolved into the earliest photo-synthesizers on Earth, producing food out of water and solar energy, while also releasing oxygen in the process.

Therefore, living beings were able to breathe because of the oxygen in the early atmosphere.

Learn more about earth's atmosphere here:

brainly.com/question/13154099

#SPJ2
The oxygen in the early atmosphere enabled living things to breathe.

Choose all the answers that apply. The continents _____. were once connected have always been in the same location are slowly drifting have stopped moving are made mostly of basalt

Answers

Answer: the correct options are

- were once connected

- are slowly drifting

Explanation: The continent is the main land mass of the earth which includes the following:

- Asia, Africa, Europe, Australia, North America, South America, and Antarctica.

These continents were once connected forming a supercontinent called PANGAEA

during the late palaeozoic and early mesozoic eras, millions of years ago.

Alfred Wegener, who is a German meteorologist, in 1912 came up with a hypothesis that the continents are slowly drifting the earth. He called the movement continental drift.

The continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics. In recent studies, through the science of plate tectonics, we where able to understand the mechanism through which continental drift occurs. The mechanism includes:

- processes of seafloor spreading,

- rift valley formation, and

- subduction (where heavier tectonic plates sink beneath lighter ones).

Answer:

Were once connected, and Are slowly drifting

Explanation:

It's called the continental drift, At first, Wegener's theory was dismissed. No one believed that the continents moved. During the 1920s, another scientist named Arthur Holmes suggested that the magma in the earth's mantle moved through convection currents. As hot magma rose toward the crust, it cooled and then sank back down. The cycle continued over and over, causing motion that was powerful enough to move the continents. Like Wegener's theory, Holmes' idea was not accepted by the scientific community. Forty years later, geologists compared mineral and fossil samples from Africa to those in South America. The samples matched perfectly. Today, the theory of continental drift is supported by a large amount of data and evidence. The continents as a whole was once called Pangaea.
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