Physics, 08.10.2019 03:30 galaxychild101

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 carry energy parallel to the motion of the wave, while sound waves carry energy perpendicular to it.

sound waves carry energy parallel to the motion of the wave, while light waves carry energy perpendicular to it.

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 22:30

According to the tide table below what time of day will the highest tide occur?

Answers: 1

Answer

Physics, 22.06.2019 00:20

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

Answers: 2

Answer

Physics, 22.06.2019 09:30

(**i would really appreciate if this was answered soon** ) which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Answers: 3

Answer

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

Answer

You know the right answer?

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

Questions