PHYSICS MIDDLE SCHOOL

Which is likely to produce the brightest spectra?A. Holographic gratings
B. Reflection gratings on plastic
C. Transmission gratings on glass
D. Replica transmission gratings on plastic

Answers

Answer 1

Answer: Hi the answer it will be A the correct one

Answer 2

Answer:

Final answer:

Holographic gratings are likely to produce the brightest spectra.

Explanation:

The correct answer is A. Holographic gratings are likely to produce the brightest spectra. Holographic gratings are created using interference patterns produced by laser light, resulting in highly precise and bright spectra. Reflection gratings on plastic (option B), transmission gratings on glass (option C), and replica transmission gratings on plastic (option D) can also produce spectra, but holographic gratings are known to have superior brightness and quality.

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Related Questions

What form of energy provides power for a gas stove? A.nuclear energyB.electrical energyC.chemical energyD.sound energy
during a space shuttle launch about 830,000 kg of fuel is burned in 8 min. the fuel provides the shuttle with a constant thrust, or forward force. how does newton's second law of motion explain why the shuttle's acceleration in creases as the fuel is burned?
What are two ways to change the state of a substance?
What two variables are being graphed?In what units is each variable measured?What is the force of gravity on the rocket at the planet's surface?What is the force of gravity on the rocket at a distance of two units (twice the planet's radius from its center)?In general, how does the force of gravity pulling on the rocket change as the distance between it and the planet increases?
5. Limestone typically doesn't accumulate in the ocean at depths below 4,000 meters because below that depth, calcite is _______.6. Based on the principle of original horizontality, geologists conclude that layers of sedimentary rock that have been tilted must have been subjected to _______.7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed _______ the conglomerate.8. Geologists use the principle of _______ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.9. Partings between adjacent beds of sedimentary rock may represent periods of _______, which could range from a few decades to a few centuries.10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means _______ material is at the top instead of at the bottom.

Why cant the moon be eclipsed when it is halfway between the nodes of its orbit?

Answers

The reason why the moon can't be eclipsed when it's halfway between the nodes of the orbit because the moon's orbit is at it's maximum deviation, meaning that it is leaving it's course from the sun's path, which would make the shadow fall way below or above the moon. Because of that, the moon can't eclipsed.

Final answer:

The Moon cannot be eclipsed when it is halfway between the nodes of its orbit due to its 5° tilt relative to the ecliptic. Eclipses can only happen during 'eclipse season' when the Moon's path crosses the ecliptic. The apparent varying sizes of the Moon and Sun from Earth also factor into whether an eclipse can occur.

Explanation:

The Moon cannot be eclipsed when it is halfway between the nodes of its orbit because of the tilt in its orbit relative to the ecliptic, or the path of the Sun on the celestial sphere. The Moon's orbit is tilted by about 5° relative to the ecliptic. So, if you imagine two hula hoops with a common center, representing the orbits of the Moon and Sun, they are tilted slightly towards each other. This means that most months, the Moon is above or below the ecliptic plane and thus cannot enter into Earth's shadow for an eclipse to occur.

Only when the path of the Moon crosses the ecliptic, during what's known as an 'eclipse season', can eclipses occur. This happens twice a year. In other words, an eclipse can only happen if the Moon is at or very near to one of the nodes of its orbit when it is at full for a lunar eclipse or new for a solar eclipse.

An additional factor causing the Moon to avoid being eclipsed is the varying apparent sizes of the Sun and the Moon from our viewpoint. At times, the Moon appears smaller than the Sun, meaning it can't entirely cover the Sun even with perfect alignment for a total solar eclipse to occur. This is known as an 'annular eclipse' that leaves a ring of sunlight visible around the Moon.

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Is this statement true or false?Hurricanes are classified by three stages in which updrafts of air billow up, updrafts and downdrafts swirl the wind up and down, then downdrafts cause clouds to come apart.

Answers

The statement is true!

The answer is its true

hope that this helped

3 characteristics of physical change

Answers

Answer:

Explanation:

A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.

Answer: it involves a change in physical properties, such as melting, condensing, evaporating, change of color, shape, size, volume an density

What happens to most materials when they are heated?

Answers

Almost every substance known to modern science expands
when it melts, and continues to expand as it is heated. That is,
its volume increases.

A shocking exception to this rule is the substance Dihydrogen Monoxide.

This substance contracts when it changes from the solid phase
to the liquid phase, and its volume continues to decrease as the
liquid is heated for 4 more degrees Celsius above its freezing/melting
point.

The result is that this amazing substance is the only one known whose
solid form floats in its liquid form, and whose liquid form near freezing
temperature rises to the top of a pool of slightly warmer liquid.

The chemical formula for Dihydrogen Monoxide is: H₂O .
The pure form is colorless, odorless, tasteless, and non-toxic.
In addition to its occurrence in nature, it is also found in faucets,
sinks, and toilets in most homes.

Most materials expand when they are heated. If they are heated enough, they may change from solid to liquid, or from liquid to gaseous forms.

Help please I can't do these !!!!You throw a rock off the top of a building located on the Planet Mars with an initial velocity of10.0 m/s. The force of gravity on Mars is ⅓ that of Earth. It takes 12.0 s to hit the ground. How tall is the building?

You shot a gun straight up into the air with a velocity of 500 m/s. How long will it take beforeit hits the ground again?

You shoot a gun with a initial velocity of 500 m/s horizontally at the exact instant you drop arock from exactly the same height (at 1.6 m off of the ground). Which one will hit the ground first.

Answers

1) G.mars= 9.8x(1/3)=3.26
Vi=10 m/s , T=12 sec
Dis. = Vi(t)+1/2(g)(t)^2
(10)(12)+1/2(3.26)(12)^2= 354.72
2)V=500 m/s
Hmax= v^/2(g) = 500^2/2(9.8) = 12755.1

Imagine you have a terrible cold. You have 2 Alka-Seltzer tablets and a glass of water. What could you do to increase the rate of the chemical reaction and get the medicine into your body as soon as possible?