subject

Physics, 21.01.2020 22:31 yungkxng57

Which statement correctly compares sound and light waves?
both light and sound waves need matter to carry energy from one place to another.
neither light nor sound waves need matter to carry energy from one place to another.
light waves cany energy parallel to the motion of the wave, while sound waves carry energy perpendicular to it.
sound waves camy energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.

ansver

Answers: 1

Show answers

Another question on Physics

question

Physics, 21.06.2019 19:00

An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm

Answers: 1

question

Physics, 22.06.2019 01:10

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Answers: 1

question

Physics, 22.06.2019 06:30

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Answers: 2

question

Physics, 22.06.2019 10:10

Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.

Answers: 2

You know the right answer?

Which statement correctly compares sound and light waves?
both light and sound waves need mat...

Questions

question

Mathematics, 14.09.2019 12:10

Which of the following statements about exponential growth is wrong? a) in an exponential growth the growing quantity increases by a fixed amou...

question

Mathematics, 14.09.2019 12:10

True or false. world population growth is steady since prehistoric times and so the exponential growth model is applicable and accurate...

question

Mathematics, 14.09.2019 12:10

write the following sets by listing its elements. a = {n ∈ \mathbb{n} : n > 10} b = {m ∈ \mathbb{z} : \left | m \right | ≤ 4}...

question

Mathematics, 14.09.2019 12:10

How much more would you earn in the first investment than in the second investment? $22,000 invested for 40 years at 14% compounded annually $22,000...

question

Mathematics, 14.09.2019 12:10

The marketing team at beth's butter works decided they preferred the traditional plastic tub packaging, but they wanted a more refined estimate of pot...

question

Mathematics, 14.09.2019 12:10

Adairy farmer ideally produces 800 gallons of milk per day. this total can fluctuate by as much as 40 gallons in either direction. what is the m...

question

Spanish, 14.09.2019 12:10

Roberto says that the opposite of a certain integer is -5. cindy concludes that the opposite of an integer is always negative. explain cindy's error...

question

Mathematics, 14.09.2019 12:10

Simplify: 7b + 1206 enter the original expression if it cannot be simplified....

question

History, 14.09.2019 12:10

How was the first encounter between the english puritans and the pequot?...

question

History, 14.09.2019 12:10

What symbols or actions does the artist portray in the image on the right that indicate the woman on trial is really a witch? check all of the boxes...

question

Computers and Technology, 14.09.2019 12:10

Which is the last line of defense in a physical security sense? a. people b. interior barriers c. exterior barriers d. perime...

question

Computers and Technology, 14.09.2019 12:10

Regarding information security. topic: security technology. what steps, procedures, or measures could/should be taken to minimize unintended conseque...

question

Computers and Technology, 14.09.2019 12:10

Abrief description of three core business services and security and privacy needs in relation to the bank’s core business services....

question

Computers and Technology, 14.09.2019 12:10

The end result of implementing the principle of least privilege means which of the following? a. users would get access to only the info for wh...

question

Computers and Technology, 14.09.2019 12:10

Which of the following is true of two-factor authentication? a. it uses the rsa public-key signature based on integers with large prime factors...

question

Computers and Technology, 14.09.2019 12:10

Use the laws of propositional logic to prove that the following compound propositions are tautologies. 1. (¬ ∧ ∨ → 2. (¬ ∨ ∧ ∨ → ∨...

question

Computers and Technology, 14.09.2019 12:10

What constitutes a normal bus load on devicenet and what can be typical causes of abnormally high bus loads? [1 mark for normal load, +3 marks for po...

question

Computers and Technology, 14.09.2019 12:10

Compare the following communications technologies on the physical level (iso osi layer 1) by compiling an appropriate table of properties: • hse (hig...

question

Computers and Technology, 14.09.2019 12:10

Explain the http protocol in your own words. (up to 150 words...

question

Computers and Technology, 14.09.2019 12:10

Mysql 8 is the first version that supports json objects. (a) true (b) false...

More questions: Physics Another questions

Questions on the website: 13722367