Ask question

Ask question

All categories

4 years ago

7

What is characteristic of both sound waves and electromagnetic waves?

1 answer:

Leno4ka [110]4 years ago

4 0

The various properties of electromagnetic waves and sound waves are described below. Sound Waves: Sound waves are mechanical<span> waves generated from vibrations within a medium. Sound can exist as longitudinal </span>mechanical<span> waves, which are also known as compression waves.</span>

You might be interested in

Identify and name the global<br> wind belts.<br> A.<br> B.<br> C.<br> D.<br> E.<br> F.<br> G.

Yuri [45]

Answer:

G

Explanation:

That is is the equator, prolly

6 0

3 years ago

Which phenomenon caused scientists to rethink their understanding of light<br> as a wave?

wariber [46]

Answer:

The phenomenon of diffraction.

Explanation:

Diffraction of light that resembles the behavior of waves in water made scientists think that light have a wave nature.

8 0

3 years ago

Read 2 more answers

A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball hits the floor with a speed of

Alla [95]

Answer:

Change in momentum is 1.1275 kg-m/s

Explanation:

It is given that,

Mass of the ball, m = 274 g = 0.274 kg

It hits the floor and rebounds upwards.

The ball hits the floor with a speed of 2.40 m/s i.e. u = -2.40 m/s (-ve because the ball hits the ground)

It rebounds with a speed of 1.7 m/s i.e. v = 1.7 m/s (+ve because the ball rebounds in upward direction)

We have to find the change in the ball's momentum. It is given by :

$\Delta p=p_f-p_i$

$\Delta p=m(v-u)$

$\Delta p=0.275\ kg(1.7\ m/s-(-2.4\ m/s))$

$\Delta p=1.1275\ kg-m/s$

So, the change in the momentum is 1.1275 kg-m/s

3 0

3 years ago

A 4 kg particle moves at a constant speed of 2.5 m/s around acircle of radius 2 m. What is its angular momentum about the center

blagie [28]

Explanation:

Given that,

Mass of the particle, m = 4 kg

Speed of the particle, v = 2.5 m/s

The radius of the circle, r = 2 m

We need to find the angular momentum about the center of the circle. The formula for the angular momentum is given by :

$L=mvr$

Substitute all the values,

$L=4\times 2.5\times 2\\\\L=20\ kg{\cdot}m^2s$

So, the angular momentum of the particle is 20 kg-m² s.

6 0

3 years ago

Salt is dissolved in a flask of tap water . Distilling the mixture causes the salt to separate from the water. Which type of ene

algol [13]

I think it’s kinetic energy

3 0

3 years ago