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Whitepunk [10]
3 years ago
11

Which electromagnetic waves are invisible and have the longest wavelengths, ranging from a few inches to longer than a football

field?
A. infrared radiation
B.ultraviolet radiation
C.radio waves
D.microwaves
Physics
2 answers:
RSB [31]3 years ago
6 0
According to my notes, C. longest wavelength to shortest: radio waves, microwaves, infra-red rays, visible light, ultraviolet rays, X-rays and lastly, gamma radiation.
Norma-Jean [14]3 years ago
3 0

Answer:

c would be the answer

Explanation:

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Westkost [7]
Since the device is a speedometer, the data it read is the speed of the racecar. Data recording involving time usually uses time as the independent variable. It was also said in the problem that it records the speed every second which shows that the time interval is constant. This means that only other data, the car's speed, is the dependent variable.
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How do mass and velocity of an object affects mommentum?
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4 years ago
Which of the following terms best describes a group of thousand galaxies?
Ivahew [28]
Hey there! :D

Cluster- a group of stars or galaxies forming a relatively close association. 

<span>Constellation- A group of stars that makes a shape, and has a name that is well known. 
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The best answer would be "Cluster" because the universe is infinite, they are millions of galaxies, solar systems, and constellations in it. The question only states 'a thousand galaxies'. This is of one kind. This best works for the question.

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~kaikers
8 0
3 years ago
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13. Litmus paper can be used to determine if a solution is an acid or a base. There are two types of
Over [174]

Answer:

The main use of litmus is to test whether a solution is acidic or basic. Light Blue litmus paper turns red under acidic conditions and red litmus paper turns blue under basic or alkaline conditions, with the color change occurring over the pH range 4.5–8.3 at 25 °C (77 °F). Neutral litmus paper is purple.

Explanation:

7 0
3 years ago
A racing car travels with a constant tangential speed of 80.8 m/s around a circular track of radius 602 m. (a) Find the magnitud
KatRina [158]

Answer:

10.84 m/s2 radially inward

Explanation:

As the car is traveling an a constant tangential speed of 80.8 m/s, the total acceleration only consists of the centripetal acceleration and no linear acceleration. The formula for centripetal acceleration with respect to tangential speed v = 80.8 m/s and radius r =602 m is

a = \frac{v^2}{r} = \frac{80.8^2}{602} = 10.84 m/s^2

b) The direction of this centripetal acceleration is radially inward

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4 years ago
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