Answer:
A
Explanation:
A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. ... This means that some individuals would survive and be able to reproduce and generate more offspring.
Answer: 1. 0.25 m/s squared
2. A = 0.4 m/s^2
3.=20kg. I did this before.
Explanation:
Potential energy is the greatest when the the kinetic energy is the least. This occurs when the ball loses the energy to fly higher, and begins to fall back to the ground.
Answer:
C has 5 electrons
Explanation:
Given:
The data acquired from the experiment performed by Millikan:
Q_a = 3.20 x10^{-19} C
Q_b = 4.80 x10^{-19} C
Q_c = 8.00 x 10^{-19} C
Q_d = 9.60 x 10^{-19} C
Find:
How many Electrons were present in drop C
Solution:
It is known that the charge of an electron e = 1.602 *10^-19 C / electron.
Hence the number of electrons n in drop C will be:
n = Q_c / e
n = 8.00 x 10^{-19} / 1.602*10^-19
n = 4.99 = 5 electrons
Answer: The drop C contains 5 electrons.
