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Arlecino [84]
3 years ago
10

Marty and Jonas are spending the week at the beach. The ultraviolet rays in their skin are electromagnetic waves from the sun, a

nd the ocean waves in which they swim are mechanical waves. What is the main difference between mechanical waves and an electromagnetic wave?
A) Electromagnetic waves transfer matter, and mechanical waves do not
B) Mechanical waves require a medium, and electromagnetic waves don’t
C) Mechanical aves transfer energy, and electromagnetic waves don’t.
D) Electromagnetic waves have more energy than mechanical wave.
SAT
2 answers:
Vsevolod [243]3 years ago
8 0

Answer:

i think b or d

Explanation:

enot [183]3 years ago
4 0
BBBBBBBBBBBBBBBBBBBBBBB
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Krypton is named after the Greek word that means “secret.” Which explains why krypton was most likely given this name?
bekas [8.4K]

Answer:

Krypton is a noble gas, so it was difficult for chemists to find it, as though it was a secret.

Explanation:

Krypton (₃₆Kr), an element with atomic number 36, belongs to group 18 on the periodic table of elements. This group is a specific one - it's made up of elements known as noble gases. Besides krypton, these elements are: helium, neon, argon, xenon, and radon. All noble gases were characterized relatively late compared to other elements. They all conduct electricity, fluoresce, and are odorless and colorless. Besides that, they have very low chemical reactivity. Because of their stability, they are often used to maintain a safe, constant environment. As krypton shares all of these characteristics, it was difficult for chemists to find it. That's why it was most likely given that name.

5 0
3 years ago
Read 2 more answers
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe
babymother [125]

Answer:

P(x = 3) = 0.1700

Explanation:

Given

n = 15

p = 0.3

Required

Determine P(x = 3)

This is calculated using:

P(x) = ^nC_xp^x(1-p)^{n-x}

So, we have:

P(x = 3) = ^{15}C_3*0.3^3*(1-0.3)^{15-3}

P(x = 3) = ^{15}C_3*0.3^3*(1-0.3)^{12}

P(x = 3) = 455 *0.027*(0.7)^{12}

P(x = 3) = 455 *0.027*0.0138412872

P(x = 3) = 0.17004021325

P(x = 3) = 0.1700

8 0
3 years ago
Which quotation from the passage provides evidence of the implied claim
defon

Answer:

a, we mutually pledge to each other our lives, our fortunes, and out sacred honor

8 0
2 years ago
Unit 2 Quiz
Karolina [17]

Answer: C.  They will have more time to manage his mother's care.

Explanation:

A single income option means that only one of them will be working and only one source of income will be used to maintain all three of them including Daniel's mother. This will most definitely result in them having less disposable income and less financial income in general.

Also the scenario painted made no mention of a baby so option D is incorrect. The most likely option in C which makes sense because with one of them staying home to take care of the mother, they will have time to be able to take care of her better.

4 0
3 years ago
Which of the following is true about an intrusion detection system
7nadin3 [17]

The statement that is true about an intrusion detection system is that They block malicious internet traffic. option A is correct

<h3>What is intrusion detection system?</h3>

This is a software that is installed on the system to monitor various  network traffic that is generated on a sites, this is to help detect the ones with suspicious activity.

The identified network traffic is then deleted from the source.

Therefore, The statement that is true about an intrusion detection system is that They block malicious internet traffic

Learn more on intrusion detection system below

brainly.com/question/20709626

#SPJ1

Which of the following is true of an intrusion detection system (IDS)

They block malicious internet traffic

They scan computers on the network for viruses and delete them when found.

They watch for specific types of activities and then alert security personnel if that activity occur.

They block SPAM email

3 0
2 years ago
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