Explanation:
Convection is defined as a process in which movement of particles of fluid is due to heat and less dense fluid rises and more denser (colder) material sink because of the influence of gravity, this results in transfer of heat.
Thus, we can conclude that the statements which accurately describe convection in water are as follows.
- Cold water sinks because it is more dense than warm water.
- Warm water rises because it is less dense than cold water.
W=mg
W=75(1.6)
W=120N
a. 120N
In uniform motion, the path is a straight line, and the object r moving along it at a constant speed.
Answer:
density of liquid 0.848 g/ml
Explanation:
from the information given in the question
mass of water = 34.914 - 25.296 = 9.618 g
volume of pycnometer = volume of water
which will be equal to 

mass of liquid =33.485-25.296 = 8.189 ml
density of liquid
= 