Answer:
more than 4 million people
Explanation:
displaced because of conflict and hunger, including 2.2 million who have fled to neighboring countries since December 2013. Uganda hosts almost 800,000 refugees from South Sudan, down from more than 1 million in mid-2018.
August 18, 1920 should be right.
The dependent variable is the mood of the participants.
The study aims to assess how the level of exercise (measured by the amount of time spent) affects another variable, that, in turn, will be the dependent variable: the mood of the participants. The aim of the study is to conclude whether it is possible or not to infer causality between those two, in other words, to see whether different levels of exercise (<em>the cause</em>), trigger the emergence of different types of mood (<em>the effect</em>).
Answer:
502.51 kg/m^3
Explanation:
Upthrust on object in water is 40 - 20 = 20 N
Upthrust is equal to the buoyancy forces given as
B = pgv
p is density of water 1000 kg/m^3
g = acceleration due to gravity 9.81 m/s^2
v is the volume of liquid displaced.
Therefore
B = 1000 x 9.81 x v
20 = 9810v
v = 2.038x10^-3 m^3
For Upthrust in unknown liquid, we have 40 - 30 = 10 N
Bouyancy force for the liquid will be
B = P x 9.81 x 2.038x10^-3
NB- the same volume of fluid will be displaced i.e 2.038x10^-3 m^3
Equating we have
10 = P x 9.81 x 2.038x10^-3
10 = 0.0199p
p = 10/0.0199 = 502.51 kg/m^3
