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gtnhenbr [62]
3 years ago
7

Two prominent research groups came to the same surprising conclusion after taking measurements of the luminosity of Type Ia supe

rnovae at great distances, this being that the universe is accelerating while it expands.
A. True
B. False
Physics
1 answer:
WARRIOR [948]3 years ago
5 0

Answer:

A. True

Explanation:

Type la supernova can be described as a phenomenon whereby two stars are in orbit with one another .

Recently , two prominent research groups came to the same surprising conclusion after taking measurements of the luminosity of Type Ia supernovae at great distances that the universe is accelerating while it expands.

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Definition of measurements?​
skad [1K]

Answer:

Measurement is a comparison of an unknown quantity with a known fixed quantity of the same kind. The value obtained on measuring a quantity is called its magnitude. The magnitude of a quantity is expressed as numbers in its unit.

8 0
3 years ago
Distinguish between a meteor, a meteoroid, and a meteorite.
leonid [27]

Answer:

The distinction can be understood by their individual definitions given below.

Explanation:

A meteoroid is a small rocky/metallic body that can be found in outer space (space beyond the Earth's atmosphere). Their sizes are much smaller than asteroids (often called planetoids) and even more smaller than that of any planets or their moons. They generally originate from comets, asteroids (fragments of them) and even from planets or moons when there occurs heavy collisions.

A meteor is basically what we know to be "shooting stars". When a meteoroid, asteroid, etc. passes through the Earth's atmosphere, they heat up and begin to glow because of the frictional force experienced due to gas molecules in the atmosphere. But the important thing is that they do not reach the surface of the Earth as they completely burn out long before coming close. If some object does manage to reach the Earth's surface, we then call it a meteorite.

(These definitions are not restricted to the Earth but applies to all panets <em>and </em>moons.)

(Also check the gif provided here: https://en.wikipedia.org/wiki/Meteoroid)

8 0
3 years ago
State the objects in the universe that reflect light from stars
worty [1.4K]

Everything in the universe that's visible, except stars,
is visible because it reflects some of the light that
shines on it.

4 0
3 years ago
Read 2 more answers
Label the different parts of a heart:
Reptile [31]
Right Atrium, Left Atrium, Pulmonary Trunk, Left Pulmonary Artery, Right Pulmonary Artery, Right Ventricle, Left Ventricle, Inferior Vena Cava, Superior Vena Cava, Acending Aorta, Aortic Arch, Apex, Left Pulmonary Veins, Right Pulmonary Veins, Brachiocepalic Artery, Ligamentum Arteriosum, Auricle, Left Common Carotoid Artery, Left Subclavian Artery, Anterior Cardiac Vein, Anterior Interventricular Artery, Left Coronary Artery (in coronary sulcus, left coronary groove), Great Cardiac Vein, Marginal Artery, Small Cardiac Vein, Right Coronary Artery (in coronary sulcus,Right coronary groove)
Here hope this helps:)

4 0
4 years ago
Which of the following is an expression of Newton's second law? A. The acceleration of an object is determined by its mass and t
Sav [38]

Answer: A. The acceleration of an object is determined by its mass and the net force acting on it.

Explanation:

Newton's second law of motion explains that the acceleration of an object will depend on two vital variables which are the mass of the object and the net force that's acting on it.

It should be noted that the acceleration of the object directly depend on the net force while it depends inversely on the mass. Therefore, when the force that's acting on such object is increased, then the acceleration will increase as well. On the other hand, when there is an increase in mass, there'll be a reduction in the acceleration.

7 0
3 years ago
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