Answer:
- radioactive decay is a random process
- use long tongs
Explanation:
Quantum theory has taught us that virtually everything to do with the nature of matter in the universe is a random process. The decay of atomic nuclei is something that makes that randomness "visible" with appropriate instrumentation. As such, the rate of decay will vary over the "short" term. Consequently, it is not surprising to see a variation of a few counts in an activity measurement over a period of a few minutes.
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Safety with respect to radioactive materials involves staying as far away from them as possible. The use of long tongs for handling would be appropriate.
Answer:
As the sun warms the land, the air above the land warms too. The warmer, lighter air rises, and the cooler heavier air above the water moves in and replace the rising warm air
Explanation:
In convection current, during a hot sunny day, the land is heated up and the air above the land becomes warm and rises upward because of their low density. The cool breeze from the sea with higher density moves downward to replace the risen warm air. This process is known sea breeze which happens in the day time.
Based on the given options, we can choose the first option.
"As the sun warms the land, the air above the land warms too. The warmer, lighter air rises, and the cooler heavier air above the water moves in and replace the rising warm air".
Answer:
Explanation:
Given that,
The dimensions of a room are 16.40 m long, 4.5 m wide and 3.26 m high.
We need to find the volume of the room.
The room in the shape of cuboid whose volume is given by :
L,B,H are length, breadth and height of the room
So,
Hence, the volume of the room is 
C) 6h i’m not that great at math but that’s what i got hope it helps!!
