Answer: D) It should be handled in a fume hood, away from open flames.
The answer is the first one: Cable waves
Answer:
Density of unknown material = 3.86 g/cm³
Explanation:
Mass of unknown material, M = 54 gm
The object occupied 14 gm of water.
Volume of unknown material = Volume of 14 gm of water.
Density of water = 1 gm/cm³
Volume of 14 gm of water
Volume of unknown material, V = Volume of 14 gm of water = 14 cm³
Density of unknown material
When you reverse the direction of the current, the current loop generated by the magentic field is revered.