The arteries move blood away from the heart so therefore, the veins retract the blood throughout the body which eventually goes back to the heart and repeats itself nonstop
Answer:
(a) 4400.83 N
(b) 1051.7 N
(c) 3349.13 N
Explanation:
V = 1.4 ft^3 = 0.0396 m^3
density of lead = 11.34 x 10^3 kg/m^3
density of aluminium = 2710 kg/m^3
(a) When lead is used
Weight = mass x gravity = volume x density x gravity
= 0.0396 x 11.34 x 1000 x 9.8 = 4400.83 N
(b) when aluminium is used
Weight = mass x gravity = volume x density x gravity
= 0.0396 x 2710 x 9.8 = 1051.7 N
(c) Difference in weight = 4400.83 - 1051.7 = 3349.13 N
Answer:
While a hypothesis is a guess that is predominantly used in science, a prediction is a guess that is mostly accepted out of science. A hypothesis is otherwise known as a good or intelligent guess. ... Moreover, hypotheses are testable guesses about the things that you'd expect to take place in your research study.
