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
Answer:
Dams built along the rivers have caused problems for people living further downstream because less water comes down the river to those people once the dam is built.
Explanation:
Because the major rivers in SW Asia have become political issues because everyone needs to be able to use the water and there is only a limited amount.
Answer:
The answer is association test. I hope this helps!
Explanation:
Kendra will prefer the breast pad that has been used by her mother and that smells of the mother
<u>Explanation:</u>
According to the studies conducted, researchers have found that babies can discover the smell of their mothers. Since birth babies are always close to their mothers breast and which is why when the sweat is generated from the sweat glands of their mother, baby can easily recognize that smell.
Apart from mother’s bread pad, if Kendra is presented with the unused pad, she will definitely refuse that pad mainly because Kendra isn’t used to the smell of that unused pad.
