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lesya692 [45]
3 years ago
10

I need help with these, please answer quick.

Chemistry
1 answer:
Alinara [238K]3 years ago
4 0

bright line btw your welcome

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Which device or substance is a type of nuclear reactor?
Alecsey [184]
Your answer would be boiling water because it creates stem and stem is pressure i hope this helps
5 0
4 years ago
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What two aspects of a force do scientists measure?
Rashid [163]

Answer: option c. magnitude and direction


Explanation:


1) Force is a vector: it has magnitude and direction.


2) Magnitude measures the "intensity" of the force. It is measured in newtons (N), in the SI (international system of units). One newton is the force exerted to confere an acceleration of 1 m/s² to a mass of 1 kg.


3) Telling the magnitude of the force is not enough information to understand what the force is and to predict its effect.


It is necessary to tell the direction in which the force is applied.


It is not the same a force of 10 N that pulls that the same magnitude pushing. And it is not the same a hhorizontal force of 100 N to move an object, than the same magnitude applied at an agle.


That is why the force must be measured and reported as a magnitude and a direction.


4) Examples of forces correctly reported are:


i) 100 N vertically upward


ii) 1000 N 20° to the east of the north.


iii) 0.2 N with an elevation angle of 50°.


Then, scientists must measure the magnitude and the direction of the force.

7 0
3 years ago
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Anyone know why its important for membranes to be selectivity permeable?
lorasvet [3.4K]
The term, selectively permeable, refers to the fact that the membrane allows some substances or molecules to enter the cells, and others to be prevented from entering. It also allows substances to leave the cell. All of this is dependent on the size of the molecule and the concentrations on either side of the membrane.

Selectively permeable membranes are important in maintaining homeostasis, fluid and electrolyte balance, and cellular health. Cells need to receive glucose and other nutrients in order to carry on normal cellular processes, and eliminate waste products of metabolism to avoid the accumulation of cellular toxins which can disrupt cellular processes and lead to cellular death.

P.s this is not my answer
4 0
3 years ago
GIVING BRAINLIEST!! HELP ASAP!!
Ksenya-84 [330]

The car stopped due to a gravitational pull (gravity slowing it down) the energy is converted to kinetic energy and heat energy.

4 0
4 years ago
The Earth's orbit is a(n) ___shape.<br> .
Stels [109]

Answer:

elliptical/ellipse

Explanation:

» <u>Concepts</u>

Astronomer <u>Johannes Kepler</u> discovered and founded his three laws of planetary motion. One of these laws states that the orbit of <u>all</u> planets, including Earth, is in an elliptical shape rather than a circle.

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