Explanation:
Physics: The study of matter and energy and the interactions between them. Physicists study such subjects as gravity, light, and time.
The question is a bit confusing but here i go..
I think it might be Selenium.
Tungsten has the highest melting point (6192°F) of all metals in their pure form.
Answer:
The speed is positive either direction.
Explanation:
- It is given that, a vehicle travels at the same speed from point A to point B then from point B to point A.
- We know that speed is a scalar quantity and velocity is a vector quantity.
- Speed has only magnitude while velocity have both magnitude as well as direction.
- In this case, the vehicle will have positive speed in either direction.
- Hence, the correct option is (D)
Answer:
Argument: It is not Safe
Further support to the argument is given below.
Explanation:
Solution:
Argument: It is not Safe
First of all, we all know the ideal gas law:
PV = nRT
And the Boyle's Law states that , if the pressure is increased then, volume will decrease. and if the volume is increased then pressure will decrease.
V is inversely proportional to Pressure of the gas.
So, in this case, Let's suppose we have toxic solution of methyl alcohol in the bottle which is tightly closed. It means pressure in the bottle is high, hence the volume is less.
If in this scenario someone, leave the bottle open in the laboratory and as it is given that the level of solution will drastically decrease. It means it is volatile in nature and is converted into gaseous form and we know now that the open bottle has now less pressure. Hence the volume of the gas will be higher and now it can spread to every corner of the laboratory. And it is very dangerous.
