Since momentum is equal to mass multiplied by velocity, you would mulitply 250 grams by 68 m/s.
The answer is 17,000 kg*m/s
Answer:
Explanation:
a ) The volume of blood flowing per second throughout the vessel is constant .
a₁ v₁ = a₂ v₂
a₁ and a₂ are cross sectional area at two places of vessel and v₁ and v₂ are velocity of blood at these places .
2A x v₁ = A x .40
v₁ = .20 m /s
b )
Let normal pressure be P₁ when cross sectional area is 2A and at cross sectional area A , pressure is P₂
Applying Bernoulli's theorem
P₁ + 1/2 ρv₁² = P₂ + 1/2 ρv₂²
P₁ - P₂ = 1/2 ρ(v₂² - v₁² )
= .5 x 1060 ( .4² - .2² )
= 63.6 Pa .
B. applied mathematical reasoning to many astronomical theories
C. used mathematical calculations to discover the planet Neptune
were done by other people. For Newton himself, the ans is
A. proposed the elliptical orbit of the planets
The natural philosopher that is credited with discovering that density could be used to determine the nature of an object is Archimedes.
<h3>Density</h3>
The term density refers to the ratio of mass to volume of an object. The density of an object is an intrinsic property hence it can be used to determine the nature of an object.
Many natural philosophers made outstanding contributions to the early development of natural philosophy. The natural philosopher that is credited with discovering that density could be used to determine the nature of an object is Archimedes.
Learn more about density: brainly.com/question/952755
