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lapo4ka [179]
4 years ago
9

What are the main activities involved in studying physics?

Physics
1 answer:
Firlakuza [10]4 years ago
7 0
The main activity that is involved in studying of physics is the study of natural laws. The study of physics has to do with many aspects of the universe. Physics majorly looks into the natural laws that operate in the universe and describe how they affect matter in relation to time. 
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State the conservation laws
oee [108]

Answer:

conservation law os also called law of conservation it states that a certain physical property does not change in the course of time within a isolated physical system

7 0
3 years ago
A bullet of mass 20g is horizontally fired with a velocity of 150m/s from a pistol of mass 2 kg. What is the
kiruha [24]

Answer:

m1 = 20g (= 0.02 kg)

Mass of pistol, m2 = 2 kg

Initial velocity of the bullet (u1) and pistol (u2) = 0

Final velocity of the bullet, v1 = +150m s-1

Let v be the recoil velocity of the pistol.

Total momentum of the pistol and bullet after it is fired is

= (0.02 kg x 150 m s-1) + (2 kg x v m s-1)

= (3 + 2v) kg m s-1

Total momentum after the fire = Total momentum before the fire

3 + 2v = 0

→v = -1.5 m/s  

7 0
3 years ago
Which of the following changes would double the force between two charged particles? O A. Decreasing the distance between the pa
jarptica [38.1K]

Let's check

\\ \rm\dashrightarrow F=\dfrac{k}{q_1q_2}{r^2}

\\ \rm\dashrightarrow F\propto Q

\\ \rm\dashrightarrow F\propto \dfrac{1}{r^2}

So

Option A and C can be used

6 0
2 years ago
Read 2 more answers
Give a reason why volmeter is always connected in parallel not in series ​
Sergio [31]

Answer:

A reason why voltmeter is always connected in parallel not in series ​is:

<u>A Voltmeter has very high resistance to ensure that it's connection do not alter flow of current in the circuit. Now if it is connected in series then no current will be there in the circuit due to it's high resistance. Hence it is connected in parallel to the load across which potential difference is to be measured.</u>

3 0
2 years ago
The the temperature of the solvent, the more quickly the solute will dissolve.
steposvetlana [31]
Since temperature and kinetic energy of molecules are proportional, the more we increase the temperature of the solvent, the faster the solute will dissolve.

This increase of kinetic energy allows the solvent molecules to more effective break apart the solvent molecules that are held together by intermolecular forces. 
5 0
3 years ago
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