At room temperature of the 92 naturally occurring elements, state the number that are:a. Solid
b. Liquid
c. Gas

Answers

Answer 1

Answer: At room temperature of the 92 naturally occurring elements, 11 are gases, 2 are liquids and the rest are solids. The 11 gases include: hydrogen, oxygen, chlorine, fluorine, iodine, nitrogen, xenon, neon, helium, krypton, and argon. The 2 liquids are bromine and mercury.

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Which of the following makes gravity increase?A.The mass of forming objects increases.

B.The mass of forming objects decreases.

C.The spherical shape of planets provides the momentum needed to increase gravity.

D.The mass of forming objects is constantly the same.

Answers

The answer is A. The mass of forming objects increases.

Gravity between objects depend on two things: distance and mass. The farther objects are apart, the lower the gravity. However, the mass of an object is directly proportional to gravity. As mass increases in an object, the gravity increases as well.

Base on the given choices above, the correct answer that corresponds to the question where it can explain as to what makes gravity increase is because of the spherical shapes of the planets. It is because it has the ability to provide momentum. In which momentum has the capability of providing mass in motion, allowing the gravity to increase.

Magnetic reversals have helped to supporta.
the theory of Pangaea.
c.
sea-floor spreading.
b.
the age of the Earth.
d.
the theory of Gondwana.
help please

Answers

Sea-floor spreading

Magnetic reversal proves seafloor spreading because we can see the polarity of the Earth’s magnetic field in rocks. As magma cools, particles in it solidify in the direction of the magnetic field. By looking at these particles, scientists can see the polarity of the magnetic field at the time the rocks were created.

Answer:

c. sea-floor spreading.

Suppose the fetus's ventricular wall moves back and forth in a pattern approximating simple harmonic motion with an amplitude of 1.7 mm and a frequency of 3.0 Hz. Find the maximum speed of the heart wall (in m/s) during this motion. Be careful of units!

Answers

Answer:

The maximum speed of the heart wall during this motion is 0.032 m/s.

Explanation:

Given that,

Amplitude of the simple harmonic motion, A = 1.7 mm = 0.0017 m

Frequency of the fetus's ventricular wall, f = 3 Hz

We need to find the maximum speed of the heart wall during this motion. The maximum speed of the object that is executing SHM is given by :

$v_(max)=A\omega$

$v_(max)=2\pi f A$

$v_(max)=2\pi * 3* 0.0017$

$v_(max)=0.032\ m/s$

So, the maximum speed of the heart wall during this motion is 0.032 m/s. Hence, this is the required solution.

What has no potential energy?

Answers

nothing. everything has potential energy as everything can be affected by the things around it

Least common shape for a galaxy is

Answers

The least common shape for a galaxy is cluster.Galaxy, by definition, is an arrangement composing of stars, planets, gassesand everything more that can be seen in the space. There are three types ofgalaxies and they are elliptical, spiral and irregular. Spherical could beapplicable as elliptical if you got to choose only one on the choices above. Exampleof spiral galaxy is the Milky Way galaxy where our Solar system is currentlylocated according to the scientists.

Answer:

cluster

Explanation:

After tasting the salt in the ocean water on a visit to the beach one day, you recall from class that the salt is the __________ in the ocean water. A. solid
B. solute
C. solution
D. solvent

Answers

Solid is a stateof matter having no space in a volume, made entirely of compact material.
Solute is adissolved substance is a dissolved substance in a solution.Solution is theone that dissolves the solute.
Solvent is theone that dissolves either a solution or solute.
Based on thedefinitions, the answer is letter B. solute.

Answer:

B. Solute

Explanation:

I've taken this on USATestPrep

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