Explanation:
sinces : Momentum = velocity × mass
then : 30 = 10 × m and m = 30 ÷ 10 = 3 kg
Volume = mass / density = 45.6/10.5 = .... L
<span>First, she should put the sample in a test tube and place it in a centrifuge. This would cause the red blood cells to move to the bottom because of their higher density. Next, she would be able to decant the plasma and analyze it separately from the red blood cells.</span>
Answer: 215.15 N
Explanation:
If we draw a free body diagram of the mass we will have the following:
(1)
(2)
Where
is the tension force of the rope,
the mass,
the acceleration due gravity and
is the weight.
On the other hand, we can calculate
as follows:
Where
and 
(3)
Now, we firstly need to find
from (2):
(4)

(5)
Substituting (5) in (1):
(6)
Finally: