Which question about the discovery of the Earth revolving around the sun could be best answered using the process of scientific
1 answer:
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Answer:
Lower than it should be.
Explanation:
Hello.
In this case, since the density is computed by:
And we obtain the volume of the solid by substracting the mass of the water and the solid minus the mass of water:
If some water is splashed out of the cylinder, the volume of water will be lower than originally measured, it means that the volume of the solid will be higher than real. In such a way, since the density is in an inversely proportional relationship with volume, as the volume of the solid is wrongly increased, therefore the density of the solid will be lower than in should be.
Regards.
Correct free-body diagram is option A)
Explanation:
There are three forces acting on Patricia:
- Her weight, which is the force of gravitational attraction exerted by the Earth on her, whose magnitude is
(where m= mass and g= acceleration of gravity). The direction of this force is vertically downward.
- The normal force, exerted by the plane on Patricia, which acts always up perpendicular to the plane
- The force of friction, which prevents Patricia from sliding. The force of static friction acts in the direction opposite to the direction of motion if the body is let moving: so here, the force of friction acts up along the plane (parallel to the plane)
Therefore, the correct choice here is option A), because:
- The weight acts vertically downward
- The normal force acts perpendicular to the plane
- The force of friction acts parallel to the plane
Learn more about forces:
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