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kumpel [21]
4 years ago
10

Which represents a correct match between ideas related to the formation of the universe? Select the two correct answers. (1 poin

t)
structures forming in the early universe - dark matter

greatest percent of mass of universe - dark matter

accelerating expansion - dark energy

glowing nebulae - dark energy
​
Physics
2 answers:
Paha777 [63]4 years ago
7 0
The greatest percent of mass of the universe is dark matter
Stels [109]4 years ago
5 0

Answer: b and c

Explanation: its pretty obvious

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particles q1, q2, and q3 are in a straight line. particles q1 = -1.60 x10^-19 C, q2 = +1.60 x10^-19 C, q3 = -1.60 x 10^-19. .001
lozanna [386]
Q2 is 1.60x10^-19.



because if you round up or add, you will come with q2
3 0
3 years ago
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A 12 kg box is pulled across the floor with a 48 N horizontal force. If the force of friction is 12 N, what is the acceleration
Oksi-84 [34.3K]

Answer:

The acceleration of the box is 3 m/s²

Explanation:

Given;

mass of the box, m = 12 kg

horizontal force pulling the box forward, Fx = 48 N

frictional force acting against the box in opposite direction, Fk = 12 N

The net horizontal force on the box, F = 48 N - 12 N

The net horizontal force on the box, F = 36 N

Apply Newton's second law of motion to determine the acceleration of the box;

F = ma

where;

F is the net horizontal force on the box

a is the acceleration of the box

a = F / m

a = 36 / 12

a = 3 m/s²

Therefore, the acceleration of the box is 3 m/s²

7 0
3 years ago
What is the tool used for classifying organisms called? A. Dichotomy B. Dichotomous key C.Dichromic key D. Periodic table
ivolga24 [154]
It is B. Dichotomous key.
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3 years ago
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PtichkaEL [24]
<h3>Option A can be correct because when the meat is kept the rump settles down and the meat is prevented from being messy everywhere.</h3>
4 0
3 years ago
Based on Newton’s First Law, what would you expect to happen to a block that is pushed across ice and begins moving (You may ass
Montano1993 [528]
An unbalanced force.
Newton's first law states that an object in motion will stay in motion until a unbalanced force acts upon it.
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