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hammer [34]
3 years ago
10

Electromagnetic radiation consists of particles called:

Physics
1 answer:
Westkost [7]3 years ago
8 0

Photons are particles of electromagnetic radiation.

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Select the correct answer. Physics is explicitly involved in studying which of these activities? A. the mixing of metals to form
geniusboy [140]

Answer:  C. the motion of a spacecraft under gravitational influence.

Explanation:

A is Metallurgy, B is Biology, C is astro-physics, I am not sure what D is, but it's   safe to say it's not physics, E, micro-biology, and the study of radiation. C is the only one involving physics.

8 0
4 years ago
Water enters a house at 1.5 m/s through a pipe with an inside radius of 1.0cm and at a pressure of 400,000 Pa. The water then tr
kupik [55]

Answer:

pressure of the water = 3.3 × 10^{5} pa

Explanation:

given data

velocity v1 = 1.5 m/s

pressure P = 400,000 Pa

inside radius r1 = 1.00 cm

pipe radius r2 = 0.5 cm  

h1 = 0 (datum at inlet)

h2 = 5.0 m (datum at inlet)

density of water ρ = 1000 kg/m³

to find out

pressure of the water

solution

we consider here flow speed in bathroom that is =  v2 and Pressure in bathroom is =  P2  

here we will use both continuity and Bernoulli equations

because here we have more than one unknown so that  

v1 × A1 = v2 × A2 × P1 +  ρ g h1 + (0.5)ρ v1² = P2 + ρ g h2 + (0.5) ρ v2²

now we use here first continuity equation for get v2

v2 = v1 \frac{A1}{A2}    

v2 = 1.5 \frac{\pi * 0.01^2}{\pi * 0.005^2}    

v2 = 6 m/s

and now we use here bernoulli eqution for find here p2 that is

P2 = P1 - 0.5× ρ ×(v2² - v1²) - ρ g (h2- h1 )

P2 = 400000  - 0.5× 1000 ×(6² - 1.5²) - 1000 × 9.81 × (5-0 )

P2 = 3.3 × 10^{5} pa

3 0
3 years ago
Science and technology are closely related, but not the same. Which of the following is most likely a result of technology, not
zavuch27 [327]

The answer is invention. Technology is vital to science for purposes of dimension, data gathering, treatment of samples, calculation, transport to research sites, defense from hazardous materials, and communication. So technology is new tools and techniques that are being industrialized that make it conceivable to progress various lines of scientific investigation.

8 0
4 years ago
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describe two methods a researcher can use to avoid obtaining a nonrepresentative sample this is for high school psychology
lawyer [7]
Take a purely random sample or to deliberately pick individuals who represents the various groups
7 0
3 years ago
1. Traditionally, only parties to a contract had rights and liabilities under the contract. This was known as the principle of _
Sladkaya [172]

Answer:

Privity of contract, Assignment

Explanation:

Privity of contract  is the relationship that exist between the parties to a contract which allows them to sue each other meanwhile it prevents a third party from doing so. It is a common law principle which provides that a contract cannot confer rights or impose obligations upon any person who is not a part to the contract.

<u>Assignment:</u> This is the act of transferring all or part of one's rights arising under a contract to another another person.

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3 years ago
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