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2 years ago

Which of the following is not an example of a physical property?

2 answers:

6 0

C. Reactivity is not a physical property because can be observed or measured without changing the composition of matter Reactivity can not

iVinArrow [24]2 years ago

4 0

Of the options presented in this problem, the answer would be C. reactivity.

Physical property is commonly known to be a s observable property of matters. This means, as the name suggests, that the physical property can be observed without the use of special instrument and other things to observe. Another thing is that it can be measured and put on a value and a standard unit of measurement. The physical property helps a lot in differentiating matter to matter and also aids in determining their uses and hazards as well. The boiling point and freezing point go hand in hand as to they are opposite to each other and are observed by the application of heat and the application of cold environment, respectively. As for density, it can be observed with the object being in contact with an adequate amount of water, if it will sink, float, or stay in the middle.

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¿Cuál de las siguientes magnitudes es derivada?

Sedaia [141]

Answer:

A. El volumen

B. La densidad.

Explanation:

A derived quantity is defined as one that has to be calculated by using two or more other measurements.

Volume is a derived quantity because it requires one to use different measurements to determine it. For instance, in the case of a cube, the length, width and height of the cube are all needed to calculate volume.

Density is also a derived quantity because it needs both volume and mass for it to be calculated.

8 0

2 years ago

A stuntman drives a car with a mass of 1500 kg on a drawbridge. The car accelerates with a constant force of 10,000 N. While he

klemol [59]

The cars new accelleration is 9,000 N.

5 0

2 years ago

50 pounds is equal to 22,700 grams. How many pounds does this backpack full of gold weigh? Would you be able to carry out that b

Mariulka [41]

The question is incomplete. Here is the complete question.

7) A standard backpack is approximately 30cm x 30cm x 40cm. Suppose you find a hoard of pure gold (density = 19.3 g/cm³) while treasure hunting in the wilderness. How much mass would your backpack hold if you filled it with gold?

8) 50 pounds is equal to 22,700 grams. How many pounds does this backpack full of gold weigh? Would you be able to carry out that backpack filled with gold?

Answer: 7) m = 694,800g

8) It wieghts 1530.4 lbf

Explanation:

7) Volume of the backpack will be

V = 30 x 30 x 40

V = 36000 cm³

According to density of gold, each cm³ corresponds to 19.3g, then:

m = 19.3 $\frac{g}{cm^{3}}$ * 36000cm³

m = 694800g

If I filled it with gold, the backpack will hold 694800g or 694.8kg.

8) 50 pounds is equal to 22700g. Then:

50 pound = 22700g

W = 694800g

W = $\frac{694800.50}{22700}$

W = 1530.4 lbf

The backpack, in pounds, will weigh 1530.4lbf, which is very heavy to be supported by a human body.

4 0

2 years ago

Plz help will give 26 points !and be mark as brainliest !

Dimas [21]

Answer:

1. The "contour interval' identifies the standard difference in elevation on a topography graph. It shows the difference in elevation of highest and lowest points on a topography map. In topographic map every fifth contour line is drawn, wider than the contour lines, called as contour index.

2. Geologist usually study all the materials that make up the earth. He can focus on different rock samples from earth's surface. the geologist works to understand history of the planet where we live on, to predict the future by explaining current occurrences.

3. The difference between the top of the plateau and the lowest point in the area of 250 m measurement is called elevation. Elevation is the highest point in the area.

4. Damage from earthquakes is determined by "Ritcher scale". Seismic waves are the vibrations occurs from earthquakes that can travel through the earth. These vibrations can be detected by the Ritcher scale.

4 0

2 years ago

Read 2 more answers

A Is a standard amount like a kilometer or gallon when used to communicate different quantities

Tatiana [17]

I think the missing word you're looking for here is 'unit'. The examples such as kilogram and gallons are all units of measurement. These are standard amounts used for mass, volume, and length. It is especially important to be consistent with this units especially when doing dimensional analysis.

6 0

2 years ago