Answer:
The object will not float in water because the density of the object is greater than that of water.
Explanation:
Density of object = 1.75 g/mL
Density of water = 1 g/mL
The Density of the object is 1.75 g/mL and that of water is 1 g/mL. This implies that the object is denser (i.e heavier) than water. Therefore, the object will not float in water, rather it will sink in water since it's density is greater than that of water.
Explanation:
Matter in which molecules have strong force of attraction are held tight together. Therefore, to break this force of attraction strong force is required.
This type of matter is know as solid. Also, it is known that solid substances have definite shape and volume.
Thus, we can conclude that a substance with a definite shape and volume is a solid phase of matter.
Option A. salt flat is the correct answer. A halophile is most likely to be found in a salt flat, as it aligns with the habitat where halophiles are most commonly found due to their ability to thrive in high-salinity conditions.
Halophiles are organisms that thrive in environments with high salt concentrations. Salt flats, also known as salt pans or salt deserts, are large expanses of flat land covered with salt and other minerals. These areas typically form in arid or semi-arid regions where water evaporates, leaving behind concentrated salt deposits.
Salt flats are characterized by their stark, white appearance due to the accumulation of salt crystals on the surface. The high salt content makes these areas inhospitable to many other forms of life, but halophiles have evolved unique mechanisms to tolerate and even benefit from the high salt concentrations.
Learn more about halophile here:
A halophile can be found in salt flats, ocean floors, swamps or marshes, and hydrothermal vents.
Halophiles are organisms that can be found in highly saline environments. They have adapted to survive in areas with high salt concentrations. Some of the locations where halophiles can be found include:
Halophiles have unique mechanisms to cope with the osmotic stress caused by the high salt content. They may have specialized enzymes and transport proteins that allow them to maintain proper cellular function in these extreme conditions.
Halophiles play an important role in the ecosystem by contributing to nutrient cycling and serving as a food source for other organisms.
Learn more about halophiles and their habitat here:
#SPJ14
b. size and stability
c. magnitude and direction
d. strength and magnitude
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.
-phosphorus
-silicon
-calcium
Answer: Option (b) is the correct answer.
Explanation:
Insulator are the substances which do not conduct electricity. It is known that metals are good conductors of electricity. Whereas non-metals do not conduct electricity.
Out of the given options, silver, and calcium is a metal that means they are good conductors of electricity and are not insulators.
On the other hand, silicon is a metalloid, that is, it shows properties of both metals and non-metals. Hence, it will also show conductivity.
Phosphorus is a non-metal and therefore, it does not conduct electricity. As a result, out f the given options it will act as the best insulator.