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Answer:</h3>
Direction
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Explanation:</h3>
The question is testing on vector and scalar quantities.
What are vector quantities and scalar quantities?
- Quantities with both magnitude and direction are known as vector quantities while those with only magnitude are known as scalar quantities.
What are the examples of vector and scalar Quantities?
- Vector quantities examples- Velocity, force, displacement, etc
- Scalar quantities examples - Speed, distance, temperature, mass, etc
What would be the difference of speed and velocity then?
- Speed and velocity differ in that velocity has both magnitude and direction (vector quantity) while speed has magnitude only (scalar quantity).
Further Explanation;
- Velocity refers to the rate of change in displacement of a body in motion
- It is given by, Velocity = Displacement ÷ time
- Speed on the other hand is the rate of change in distance of body.
- It is calculated by, Speed = Distance ÷ time
- Displacement is the distance in a specified direction.
- Velocity and displacement are vector quantity in that they have both magnitude and direction.
- Speed and distance on the other hand lack direction and thus are scalar quantity since they only have magnitude.
Answer:
1.73 × 10²⁴ Molecules
Explanation:
Relation between number of molecules and moles is,
No. of Molecules = Moles × 6.022 × 10²³ Molecules/mol
No. of Molecules = 2.88 mol × 6.022 × 10²³ Molecules/mol
No. of Molecules = 1.73 × 10²⁴ Molecules
Answer: I believe the answer is A.
Explanation: Well, the lithosphere is rocks and earth, the hydrosphere makes up all the water on Earth, the biosphere is us, (living things,) and the atmosphere is the air that surrounds us and our planet. So if you go in order, it's basically lithosphere, hydrosphere, biosphere, and then atmosphere.
