Answer:
1 gm
Explanation:
.05 g/cm^3 * 20 cm^3 = 1 gm
We are given information:
λ

Formula that connects wavelength and frequency is:
A theory is an explanation that unites the findings of many experiments, and it can be changed when new experimental results need to be explained.
Work done=mgh
W=force*height
W=5N*0.50mts
W=2.5joule
Answer:
The answer is gravitational force
Explanation: