PHYSICS HIGH SCHOOL

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

Answers

Answer 1
Answer: 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. 

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Gravity is a force of attraction between objects that is due to their weight and height between one another. a. True
b. False

Answers

The statement above is false. The statement should be: "Gravity is a force of attraction between objects that is due to their masses." Mass and weight are often interchanged. Gravitational force depends on the masses of objects, but the size of this force is what weight is. So the relationship is:

Weight = mass x gravitational constant = mass x 9.81 m/s^2

What is the oscillating universe theory

Answers

Oscillating Universe Theory is a cosmological model that combines both the Big Bang and the Big Crunch

Up to 80% of doctors endorse this project "uses which rhetorical device"

Answers

the correct answer is this one: "A. Euphemism." Up to 80% of doctors endorse this project" uses Euphemism as a  rhetorical device.
Here are the choices.
A. Euphemism
B. Weasel Words
C. Proof Surrogate
D. Innuendo
E. Hyperbole

Answer;

Proof Surrogate.

Explanation;

A claim masquerading as proof or evidence, when no such proof or evidence is actually being offered.

Proof Surrogate is an expression used to suggest that there is evidence for a claim without actually citing any evidence.  For example;

-“Scientists have known that aliens exist for years now.”

-“Everyone knows that bottled water is better for you than tap water.”

A material that transmits nearly all the light in a ray because it offers little resistance to the light is A. translucent.
B. opaque.
C. fluorescent.
D. transparent.

Answers

Answer

D. transparent.

Explanation.

Materials can be classified into three in relation to how light pass through them.

Translucent. These are materials that allow light to pass through them but you can not see through them. A good example of this material is the glass that is used to make doors of a bathroom.

Opaque. These are material that cannot at all allow light to go through them. Examples are; Thick metals, concrete, wood and many others.

Transparent. Theses are materials that allow light to go through them and also you can see through them. A good example is the windscreen of a car.

With this information the correct answer is D. transparent.
The answer is D, transparent

What is the exact meaning of croos section and cross sectional area of a conductor?

Answers

The cross section is the little tiny circle you see when you cut a wire
and look at the flat, cut end.

The cross-sectional area of the wire is the area of that little circle. 
It's equal to

                           Area = (pi) x (1/4) x (Diameter of the wire)²

____________ is the total energy of a system.a. Entropy
c. Enthalpy
b. Fusion
d. Gibbs energy

Answers

The correct answer is letter c. Enthalpy (H). Entrophy means the measure of the degree of disorder. Gibbs energy  formulated by Josiah Willard Gibbs and it is the energy associated with a chemical reaction to do work.Fusion is the combining light nuclei into a heavier nucleus.
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