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castortr0y [4]
3 years ago
8

Write a hypothesis about the use of an object’s physical characteristics to determine its density. Use the format "if . . . then

. . . because . . .” and be sure to answer the lesson question "How can the density of an object be determined?” BE ORIGINAL AND SIMPLE
Physics
1 answer:
Ad libitum [116K]3 years ago
7 0

Answer:

If an object has a high density then the molicules making up that object are closly packed togeather. Because of this, objects with a higher density will have more mass than objects of the same size that have a lesser density.

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Stand on a bathroom scale on a level floor, and the reading on the scale shows the gravitational force on you, mg. If the floor
kari74 [83]

Answer:

<em>The angle introduces an error on the mesure of the weight</em>

Explanation:

<u><em>Weight and Normal Forces</em></u>

When an object is resting on a horizontal surface, its weight is directed downwards and the normal force has the same magnitude and opposite direction, i.e. directed upwards. When some angle α exists between the surface and the horizontal plane, the scale keeps 'feeling' the Normal force, but it's not equal to the weight anymore, but to the perpendicular component of the weight to the surface where the scale is placed. It can be found that the component of the weight is m.g.cosα

If, for example \alpha=10^o, the real measure is

m.g.cos 10^o=0.985(mg)

That is, 98.5% of the correct weight. So it's important to measure weight on horizontal surfaces

7 0
3 years ago
A force of 20 newtons is exerted on a chair from its right and a force of 12 newtons is applied from
tankabanditka [31]

Answer:

The net force acting on the chair is 8 newtons, and the chair moves toward the left.

Explanation:

We can better understand this problem if we analyze it through a free body diagram. This free body diagram is attached as an image.

If we make a sum of forces acting over the chair we can find -20 + 12 = -8 [N]

The minus sign indicates that the chair is moving to the left.

5 0
3 years ago
PLS HELP ASAP
puteri [66]

Answer:

The answer is proteins

4 0
2 years ago
What part of the atom takes up most of the atoms space?
Ahat [919]

Answer:

The electrons

Explanation:

3 0
3 years ago
Read 2 more answers
Uses of convace, convex mirror​
Leya [2.2K]

Answer:

The concave mirror is a converging mirror so that it is used for many purposes, It is used as a torch to reflect the light, It is used in the aircraft landing at the airports to guide the aeroplanes, It is used in shaving to get an enlarged and erect image of the face.

Explanation:

3 0
3 years ago
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