What is the oscillating universe theory

Answers

Answer 1

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

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PLEASE HELP ME A lens with a surface that curves outward like the exterior of a sphere is __________. (Points : 1) reflected refracted concave convex

Answers

Convex.

Concave curved inward (like how a cave foes in) and convex curves outward. Reflected and refracted do not apply to a lens.

Answer:

Convex

Explanation:

The picture above shows 3 sets of balloons, all with a particular charge. Which of the picture(s) is true? Explain. Then explain why the other 2 pictures are incorrect. Make sure to explain all 3 sets.

Answers

Among all of the others Picture 3 is correct.

We know, Like charges repel each other whereas unlike charges attract each other, In picture 3 they are like charges (both are positive) so, we can repulsion hence, picture is correct!

In picture 1, they are unlike charges, & showing repulsion which is wrong, same In picture 2, they are like charges & showing attraction so they are wrong as well

Hope this helps!

You lift a 45N bag of mulch? 1.2meters and carry it a distance of 10 meters how much work was done

Answers

W = Fxd
However, when you carry it, the actual bag of mulch isnt changing height so the only work done on the actual bag is when you lift it.
W = 45N x 1.2m
= 54J

Which of the following answers describes Kepler's laws?a. Planets orbit in elliptical patterns; the bigger the planet, the more gravitational pull; a planet's gravitational pull is stronger or weaker depending on its distance from the Sun.

b. A planet's orbit covers equal distances in equal amounts of time; the speed of a planet's orbit depends on its distance from the Sun; the bigger the planet, the slower it moves.

c. Planets orbit in elliptical patterns; a planet's orbit covers equal areas in equal amounts of time; planets' orbits are shorter or longer depending on their distance from the Sun.

Answers

The correct answer to the question is : C) Planets orbit in elliptical patterns; a planet's orbit covers equal areas in equal amounts of time; planets' orbits are shorter or longer depending on their distance from the Sun.

EXPLANATION:

Before coming into any conclusion, first we have to understand three laws of Kepler on planetary motion.

First law: Every planets moves around the sun in elliptical orbits with the sun situated at one of their foci.

Second law: Planets sweep out equal areas in equal interval of time.

Third law: The square of time period of rotation of every planet is directly proportional to the cube of semi major axis.

Hence, from above we see that the option three corresponds to the Kepler's laws partially.

Hence, the correct statement is option three.

Choices a). and b). each include some truth
mingled with some nonsense.

Choice c). is in fact a scientifically sloppy but intuitively
satisfying summary of Kepler's three laws of planetary motion.

All of the following are reasons that psychologists use a systematic method to conduct research except __________.