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Marina86 [1]
3 years ago
9

Question 15 of 15

Physics
1 answer:
mars1129 [50]3 years ago
6 0

Answer:

Momentum

Explanation:

-Conservation means that any quantity is kept constant.❌

-Force is product of mass and acceleration.❌

-Impulse is product of force and the period of action of the force.❌

-Momentum is the product of mass of a body and it's velocity.✔️

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Which is an example of radiation?
Y_Kistochka [10]
A common example of radiation would have to be sunlight

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3 years ago
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When the body requires an increased blood flow rate in a particular organ or muscle, it can accomplish this by increasing the di
horsena [70]

Answer: The percentage increase in diameter is 19%

Explanation:

<em>Using Poiseuille's law which states that Flow rate , Q = ΔPπr⁴/8ηl</em>

<em>where ΔP is pressure difference, π is a constant, r is the radius which is half of the diameter, η is viscosity of blood, l is length of blood vessel</em>

Let Q₁ be the intitial flow rate, Q₂ the final flow rate,r₁ and r₂ the initial and final radius.

Note: r = d/2, therefore, r₁⁴ = d₁⁴/16 r₂⁴ = d₂⁴/16

Also, Q₂ = 2Q₁, since the flow rate is doubled

Since all factors except diameter is constant, d₂⁴/16 = 2d₁⁴/16

d₂⁴/16 =  d₁⁴/8

multiply both sides of the equation by 16

d₂⁴ = 2d₁⁴

taking the fourth root of both sides

d₂ = 1.19*d₁

d₂ - d₁ = 1.19d₁ - d₁

d₂ - d₁ = d₁(1.19 - 1)

d₂ - d₁ = 0.19d₁

d₂ - d₁/d₁ = (0.19d₁/d₁)*100%

(d₂ - d₁/d₁)*100% = 19%

Therefore, the percentage increase in diameter is 19%

3 0
4 years ago
Jonathan is riding a bicycle and encounters a hill of height 7.30 m. At the base of the hill, he is traveling at 6.00 m/s . When
Burka [1]

W= mgh + 0.5m*vf^2- 0.5m*vi^2.

<h3>What is the Earth system?</h3>
  • The interactions between Earth's five systems—the geosphere, biosphere, cryosphere, hydrosphere, and atmosphere—create the conditions we are accustomed to.
  • The rock cycle, the food chain, the carbon cycle, the nitrogen cycle, the water cycle, and the energy cycle are a few examples found in the Earth system.
  • The major Earth circulation processes that move water, carbon, and nutrients renew essential elements for life and contribute to climate control. The continents, atmosphere, oceans, ice, and life on Earth are dynamic elements that constantly change and interact in a wide variety of ways.
  • A system is made up of four independent spheres. A change in one sphere may result in another change because the spheres interact. Fields are plowed by humans (biosphere) using farm equipment made of geosphere materials, while plants are watered by precipitation (hydrosphere) brought by the atmosphere.

How much work does Jonathan do on the bicycle pedals within the Jonathan-bicycle-Earth system during this process?W= mgh + 0.5m*vf^2- 0.5m*vi^2

To learn more about Earth's system, refer to:

brainly.com/question/1265737

#SPJ4

6 0
2 years ago
The velocity of waves having wavelength 0.643 m and frequency 3.25 e 10 hz is
Alexeev081 [22]

The relationship between velocity (v), wavelength (w) and frequency (f) is expressed as:

v = w f

Plugging in the given values into the equation:

v = 0.643 m (3.25 e 10 Hz)

Where Hz = 1 / s , therefore:

v = 0.643 m (3.25 e 10 / s)

v = 2.09 <span>e 10 m / s</span>

4 0
4 years ago
A kind of foliated metamorphic rock a. coal b. limestone c. marble d. slate
djyliett [7]
Limestone is a kind of Foliated Metamorphic rock.  
4 0
4 years ago
Read 2 more answers
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