Answer:
Gamma rays are mostly used in the radiotherapy/ radiooncology to treat cancer. They can also be used to spot tumours. Gamma rays can kill living cells and damage malignant tumor
Answer:
D a thermometer
Explanation: It measures and track Celcius and Feirinheit.
Answer:

Explanation:
Given:
volume of air in the room, 
temperature of the room, 
<u>Saturation water vapor pressure at any temperature T K is given as:</u>
<u />
<u />
putting T=298 K we have

<u>The no. of moles of water molecules that this volume of air can hold is:</u>
Using Ideal gas law,



is the maximum capacity of the given volume of air to hold the moisture.
Currently we have 80% of n, so the mass of 20% of n:

where;
M= molecular mass of water

is the mass of water that can vaporize further.
Answer:
The answer is B, velocity.
Explanation:
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