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Ipatiy [6.2K]
3 years ago
11

Newton’s law of gravity says the gravitational force between two objects is proportional to:

Physics
1 answer:
Nat2105 [25]3 years ago
3 0

Answer:

Mass of the object or earth

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Physical and chemical properties of water​
posledela

(Not sure how many examples you need so I will put three for each)


Physical:

  1. As you now know, water in its natural condition is a colorless, odorless, and tasteless liquid. The hexagonal structure of water's crystals.
  2. The temperature at which a liquid's vapor pressure equals the pressure around it, turning the liquid into vapor, is known as the boiling point. We are aware that water reaches its boiling point at 100°C.
  3. The temperature at which a material transition from a liquid to a solid is known as the freezing point. The freezing point of water, which is 0°C or 32°F, is the temperature at which liquid water changes to solid ice.

Chemical:

  1. One of the most significant characteristics of water is its amphoteric tendency. Amphoteric refers to a substance's capacity to function as an acid or base. Water is neither acidic nor basic in its natural form. Its capacity to give and receive protons is the key justification. However, rainfall has a pH between 5.2 and 5.8, making it mildly acidic.
  2. Water is referred to be the all-purpose solvent. This is due to its chemical makeup, physical characteristics, high dielectric constant, and other factors that make it the most solvent material. It can attract other compound molecules, disabling their molecular forces and causing them to dissolve since hydrogen and oxygen both have positive and negative charges that are available.
  3. Water is a chemical molecule made up of two hydrogen atoms and one oxygen atom. The liquid condition of that substance is often referred to as water, and the solid and gas phases are respectively referred to as ice and steam.

6 0
2 years ago
Table 1
vladimir1956 [14]

Answer:

the answer is c.

Explanation:

7 0
2 years ago
The amount of radiant power produced by the sun is approximately 3.9 ✕ 1026 W. Assuming the sun to be a perfect blackbody sphere
fredd [130]

Answer:

T=5797.8  K

Explanation:

Given that

Power P = 3.9 x 10²⁶ W

Radius ,r= 6.96 x 10⁸ m

We know that ,From Plank's law

P = σ A T⁴

σ = 5.67 x 10 ⁻⁸

A= Area ,T= Temperature ( in Kelvin)

T=\left (\dfrac{P}{\sigma A} \right )^{\dfrac{1}{4}}

Now by putting the values

T=\left (\dfrac{P}{\sigma A}\right )^{\dfrac{1}{4}}

T=\left (\dfrac{3.9\times 10^{26}}{5.67\times 10^{-8}\times 4\times \pi \times (6.96\times 10^8)^2} \right )^{\dfrac{1}{4}}

T=5797.8  K

The temperature of surface will be 5797.8 K

4 0
3 years ago
A person on a cruise ship is doing laps on the promenade deck. on one portion of the track the person is moving north with a spe
Dmitry [639]
The resultant motion is given by pithagoras, since the two components (north and east) are perpendicular to each other.
They are asking you about the direction so you have to use trigonometry, finding that the direction is Ф=arctan(3.8/12)=17.57° north of east.
4 0
3 years ago
Read 2 more answers
An electric current in a copper wire is produced by the motion of which of the following particles? a. copper atoms b. neutrons
algol [13]

Answer:

electrons

Explanation:

Because electric current is flowed due to the presence of free electrons.

5 0
2 years ago
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