Dark energy is an unexplained force that is causing _____. stars to explode the expansion of the universe to accelerate the universe to contract galaxies to group together

Answers

Answer 1

Answer: The best choice would be the second statement. Dark energy is an unexplained force that is causing the expansion of the universe to accelerate. It is an unknown form of energy which is the most accepted hypothesis during the 1990s to explain the observations that the universe is expanding at a rate that is accelerating.

Answer 2

Answer:

Answer:

the expansion of the universe to accelerate

Explanation:

Related Questions

According to Newton's Third Law of Motion, what happens when two objects of unequal masses collide? A. The object with the larger mass will have greater damage. B. The object with the smaller mass will continue forward due to inertia. C. They will push away from each other in proportion to their masses. D. They will both make a sudden stop.
Which statement is true about how objects appear to bend that are partially submerged in water?They appear to bend at the surface due to reflection. They appear to bend at the surface due to refraction. They appear to bend at the surface due to diffraction. They appear to bend at the surface due to interference
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. The blue car accelerates uniformly at a rate of 3.7 m/s2 for 4.4 seconds. It then continues at a constant speed for 8.3 seconds, before applying the brakes such that the carâs speed decreases uniformly coming to rest 216.0 meters from where it started. The yellow car accelerates uniformly for the entire distance, finally catching the blue car just as the blue car comes to a stop. 1. How fast is the blue car going 1.8 seconds after it starts? 2. How fast is the blue car going 10.0 seconds after it starts? 3. How far does the blue car travel before its brakes are applied to slow down? 4. What is the acceleration of the blue car once the brakes are applied? 5. What is the total time the blue car is moving? 6. What is the acceleration of the yellow car?
You have a cylindrical balloonship with the mass of 25 000kg, how should I calculate the airfriction on it's speed?
Imagine that a tank is filled with water. The height of the liquid column is 7 meters and the area is 1.5square meters (m2 ). What's the force of gravity acting on the column of water? A. 73,500 N B. 102,900 N C. 68,600 N D. 110,700 N

Do you get the same answer if you drive 1.0x10²km at each of the two speeds

Answers

That all depends on what the question is.

If the question is "How long does it take you to get there ?",
then the answer is 'No' .

If the question is "What color is the car ?", then
the answer is 'Yes' .

When you whisper, you produce a 10-dB sound.a. When you speak quietly, your voice sounds twice as loud as a whisper. How many decibels is this?
b. When you speak normally, your voice sounds 4 times as loud as a whisper. How many decibels is this?
c. When you yell, your voice sounds 8 times as loud as a whisper. How many decibels is this?

Answers

All you would do is for a, 10 times 2 is 20 so it would be 20-dB
For b, 10 times 4 is 40 so it would be 40-dB
For c, 10 times 8 is 80 so it would be 80-dB

The temperature of a balloon is lowered with liquid nitrogen. The balloon appears to deflate because the A. nitrogen has burst the balloon. B. nitrogen is now inside the balloon. C. balloon has lost energy and condensed. D. gas in the balloon lost energy and condensed.

Answers

The temperature of a balloon is lowered with liquid nitrogen. The balloon appears to deflate because the gas in the balloon lost energy and condensed. The answer is letter D.

What is the frequncy of a wave that has a speed of 8m/s and a wave length of 2?

Answers

v = f \times λ

v = 8m/s

λ = 2

f = v \div λ

f = 8 \div 2

f = 4hz

Physics question WILL GIVE BRAINLIEST!!! A 1,600 kg train car rolling freely on level track at 16 m/s bumps into a 1.0 x 10^3 kg train car moving at 10.0 m/s in the same direction, and the two latch onto each other and continue together. What is their final speed?10 m/s
14 m/s
6.0 m/s
16 m/s

Answers

Answer:

$v'\approx 14\ m/s$

Explanation:

Linear Momentum

Two objects of masses and moving in a linear path at speeds and respectively have a total momentum of

$p=m_1v_1+m_2v_2$

When the objects collide, a change of conditions occurs and they start to move at different speeds. The necessary condition to find the after-colliding speeds is the conservation of linear momentum that states the total momentum of an isolated system doesn't change regardless of the internal interactions of the objects. Thus, the new momentum is

$p'=m_1v_1'+m_2v_2'$

And they must be the same, thus

$m_1v_1'+m_2v_2'=m_1v_1+m_2v_2$

We know both cars stick together after the collision, so the final speed is common to both, and the above formula becomes

$(m_1+m_2)v'=m_1v_1+m_2v_2$

Solving for v'

$\displaystyle v'=(m_1v_1+m_2v_2)/((m_1+m_2))$

Plugging in the values, we have

$\displaystyle v'=((1600)(16)+(1000)(10))/((1600+1000))$

$\boxed{v'=13.69\ m/s}$

Correct option (closest to the computed speed): 14 m/s

What material would make the best heating element for an electric range?a. a resistor, which converts some electric energy to thermal energy
b. an insulator, which stops the flow of electricity
c. a conductor, which carry electric currents
d. a conductor surrounded by an insulator

Answers

Conductor is a material would make the best heating element for an electric range.

What is conductor?

A conductor, which carry electric currents is considered as the best heating element for an electric range because conductor is a material that transfer large amount of heat and electricity without losing it.

So we can conclude that conductor is a material would make the best heating element for an electric range.

Learn more about conductor here: brainly.com/question/24154868

#SPJ1

Answer:

A. A resistor, which converts some electric energy to thermal energy.

Explanation:

I took the k12 test!

Other Questions

Hat is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s? A. 5.0 J B. 6.5 J C. 10.0 J D. 12.5 J

Which particles make up the nucleus of an atom?

Which type of bond will sulfer (S) and nitrogen (N) form?a. metallic bondb. covalent bondc. iconic bond

The big bang theory suggests that the universe is about _____.300 million years old4.6 billion years old30 billion years old13 billion years old