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3 years ago

Which statement best describes the common features of sound waves and light waves

Physics

1 answer:

Viktor [21]3 years ago

7 0

Sound waves or bounces off the wall and light waves are waves of light

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AGREE OR DISAGREE: All light can be seen.

Tema [17]

Answer:

Disagree

Explanation:

We cannot see infared lights.

3 0

2 years ago

You lift a 25-kg child 0.80 m, slowly carry him 10 m to the playroom, and finally set him back down 0.80 m onto the playroom flo

maksim [4K]

To solve this problem we will apply the work theorem which is expressed as the force applied to displace a body. Considering that body strength is equivalent to weight, we will make the following considerations

$\text{Mass of the child} = m = 25kg$

$\text{Acceleration due to gravity} = g = 9.81m/s^2$

$\text{Height lifted} = h = 0.80m (Upward)$

Work done to upward the object

$W = mgh$

$W = (25)(9.81)(0.8)$

$W = 196.2J$

Horizontal Force applied while carrying 10m,

$F = 0N$

$W = 0J$

Height descended in setting the child down

$h' = -0.8m (Downwoard)$

$W = mgh'$

$W = (25)(9.81)(-0.80)$

$W = -196.2J$

For full time, assuming that the total value of work is always expressed in terms of its symbol, it would be zero, since at first it performs the same work that is later complemented in a negative way.

6 0

3 years ago

What is the temperature of a gas in which the atoms are moving very very slowly

Mice21 [21]

The temperature of a gas in which the atoms are moving slowly is (THE COLD).

THAT'S IT! :)

4 0

3 years ago

Read 2 more answers

Why would an asteroid have a difficult time of holding a probe or person?

babymother [125]

The asteroid's mass is so small that it has a much smaller acceleration
due to gravity than Earth has. That means that things weigh very very little
on the surface of an asteroid. It also means that the "escape velocity" from
an asteroid is very low, and orbital velocities are very low at any distance off
of its surface.

As an extreme example: You know how when you walk, you naturally rise up
on the toes of one foot while you reach out with the other one to take a step ?
All of those motions are what you learn in Earth's gravity. On an asteroid, that
natural action of rising up on your toes might launch you into a long, high arc,
like a golf ball. Or it might even exceed escape velocity and you'd sail up off
of the asteroid and never come back down to it.

5 0

2 years ago

At a certain harbor, the tides cause the ocean surface to rise and fall a distance d (from highest level to lowest level) in sim

OleMash [197]

Answer:

1.869 hours

Explanation:

$T$ = Time period = 11.1 h

Angular frequency is given by

$\omega=\frac{2\pi}{T}\\\Rightarrow \omega=\frac{2\pi}{11.1}\\\Rightarrow \omega=0.566\ rad/h$

The distance moved from highest to lowest level is given by

$d=2x_{m}\\\Rightarrow x_m=\frac{d}{2}\\\Rightarrow x_m=0.5d$

At the ocean surface $x_m=0.25d$

$x=x_mcos(\omega t+\phi)$

$\phi$ = Phase constant = 0 as clock is started at $x_0=x_m$

$0.25d=0.5dcos(0.56t)\\\Rightarrow cos(0.56t)=\frac{0.25}{0.5}\\\Rightarrow 0.56t=cos^{-1}0.5\\\Rightarrow t=\frac{1.047}{0.56}\\\Rightarrow t=1.869\ h$

The time taken for the water to fall the distance is 1.869 hours

7 0

2 years ago