In a closed system, the total energy prior to an energy transformation is _______ the total energy after. A. equal to B. unrelated to C. greater than D. less than

Answers

Answer 1

Answer:

Answer:

A) equal to

In a closed system, the total energy prior to an energy transformation is equal to the total energy after.

Explanation:

A closed system is defined as an isolated region surrounded by a boundary across which no transfer of matter or energy can take place.

Hence, even if there is an energy transformation in a closed system, the overall energy of the closed system remains constant.

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What function do capillaries serve in the cardiovascular system?A.
carry blood to the brain
B.
return blood to the lungs
C.
help control body temperature
D.
replace old blood cells

Answers

Hey there!
The correct answer to the question is B) return blood to the lungs.

Capillaries are the smallest blood vessels in our body. Capillaries allow the exchange of water, oxygen, carbon dioxide, nutrients, minerals, and wastes in the body.

Thank you for being part of the Brainly community! :D

Answer:

Its C

I hope this helps!!!

If the bug has a mass of 0.05 kg and accelerates at 2 m/s2 whats the net force on the bug

Answers

Force = (mass) x (acceleration) = (0.05 kg) x (2 m/s²) = 0.1 Newton.

What is polygamy? Explain please:)

Answers

I always thought that 'polygamy' refers to the social system in which a man
may have more than one wife, and I thought there's some other word for
where a woman is married to more than one man.

But when I went to look it up just now to answer your question, (which by the
way you could also have done very easily), I found a definition that says it's a
"state of marriage between many spouses". That doesn't specify genders, so
I guess it means any marriage that involves more than two people, no matter
how the genders may be represented or distributed within it.

Polygamy is the marriage that includes two or more partners, like a husband with four wives.

O núcleo de um átomo possui 5 prótons e 6 nêutrons.Determine o número atômico (Z) r o.número de massa (A)

Answers

numero atômico = numero protons = 5
numer de massa = numero protons + numero nêutrons = 11

La ce distanta de la suprafata Pamintului intensitatea cimpului sau gravidational este egala cu 1 N/kg ?Va rooogggg .. ofer 21 puncte !!!

Answers

Acceleration of gravity is proportional to 1/D² .
('D' is the distance from the Earth's center.)

We need (D / R)² = 9.8
('R' is the Earth's radius.)

D/R = √9.8 = 3.13

Distance from Earth's center = 3.13 R
Distance above Earth's surface = 2.13 R = about 13,570 km =====================================================

Accelerarea de gravitate este proporțională cu 1 / D².
('D este distanța de centrul Pământului.)

Avem nevoie de (D / R) ² = 9,8
('R' este raza Pământului.)

D / R = √9.8 = 3,13

Distanța de la centrul Pamantului = 3,13 R
Distanța de deasupra suprafetei Pamantului = 2.13 R = aproximativ 13,570 km

Two planets of the same mass are observed.Which of the following distances between the two planets would result in the least gravitational attraction?

A. 90 light years
B. 80 light years
C. 60 light years
D. 50 light years

Answers

It really doesn't matter what mass the planets have, or whether they're equal, or whether they're planets. The farther apart two objects are, the less gravitational attraction there is between them.

As the distance increases, the gravitational force between them decreases.
So, the option with the largest distance is (A) 90 light yrs. And that's the answer !!

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