Answer;
2 g/cm³ or 2000 kg/m³
Solution;
Density is given by dividing the mass of a substance by its volume.
Density = Mass/volume
Mass = 36 g
Volume = length × width × height
= 6 cm × 3 cm × 1 cm
= 18 cm ³
Therefore;
Density = 36 g/ 18 cm³
= 2 g/cm³ or 2000 kg/m³
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➷ Use this equation:
Q = IT
Rearrange for I
I = Q/T
Substitute in the values:
I = 240/3
I = 80
The electric current is 80 amps.
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14. The Aurora is an incredible light show caused by collisions between electrically charged particles released from the sun that enter the earth's atmosphere and collide with gases such as oxygen and nitrogen. The lights are seen around the magnetic poles of the northern and southern hemispheres.
15.
About 5.4 billion years from now, the sun will have exhausted all of its hydrogen. The sun's core will get really hot and dense, thus shrinking; however, the outer region of the sun will expand and grow. ... Even if the expanding dying sun doesn't reach Earth, the sun's high temperatures will completely burn the planet.
Explanation:
Before mitosis, the chromosomes are copied. They then coil up, and each chromosome looks like a letter X in the nucleus of the cell. The chromosomes now consist of two sister chromatids. Mitosis separates these chromatids, so that each new cell has a copy of every chromosome
Answer:
7.3cm above the compressed spring.
Explanation:
We can use the conservation energy theorem to solve this problem:
The block was dropped 7.3cm above the compressed spring.
