Answer:
I think it should be D
Explanation:
This is because the arrow pointing right is bigger than the arrow pointing left. Hence we can conclude the the force acting on the right is greater and hence it is accelerating
Answer:
v = 3.78 m/s
Explanation:
given,
mass of the child = 36 Kg
length of the chain, r = 2.9 m
tension in each chain, T = 265 N
now,
Net force acting in the system
2 T - m g = m a
T is the tension in the chain
a is the acceleration in the normal direction
here,
now,
v² = 14.274
v = 3.78 m/s
speed of the child at the lowest point is equal to 3.78 m/s
Answer:
......................
Explanation:
It is called so because it is applicable on all bodies having mass, and the bodies will be governed by the same law, that is newton's law of gravitation. Thus, as it is applicable universally, it is called as universal law.
Answer: D- Each chromosome in a cell is made up of two chromatids, which are each made up of molecules of DNA
Explanation:
A macromolecule is a large molecule that is made of many smaller units. Chromosomes are macromolecules that contain all of the genetic information in a cell. Chromosomes are each made of two smaller units called chromatids. Chromatids are each made up of molecules of DNA. Therefore, the correct description of the hierarchy of genetic material in a cell is that each chromosome in a cell is made up of two chromatids, which are each made up of molecules of DNA. The structures become more and more microscopic as one moves down the hierarchy.