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Liula [17]
3 years ago
8

NEED ASAP!!! I need help with this question, please provide an explanation to the answer for brainliest!

Physics
2 answers:
dybincka [34]3 years ago
7 0
The answer is d 4 h to 5 h
sveta [45]3 years ago
4 0
The gradient of the displacement time graph gives the speed. At 4h to 5h the gradient is the steepest therefore the speed is the greatest, motion is the fastest
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If this standing wave is 48.8 meters long from end to end, what is the wavelength?
Mrrafil [7]

The wavelength of a standing wave is 8.13 m.

<h3>What is a wavelength?</h3>

The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.

The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.

The given data in the problem is;

String length(L)= 48.8 metere

Wavelength(λ)=?

The length of the wave having n nodes is found as;

L=nλ

Substitute the given value;

48.8 = 6λ

λ= 8.13 m

Hence, the wavelength of a standing wave is 8.13 m.

To learn more about the wavelength, refer to the link;

brainly.com/question/7143261

#SPJ1

6 0
2 years ago
Kinetic energy during an object falling
Crazy boy [7]

Answer:

kinetic \: energy =  \frac{1}{2} m {v}^{2}  \\  m = mass \: of \: the \: object \\ v = velocity \:

6 0
3 years ago
An electron is held at a distance from a stationary, positively charged object.
salantis [7]

Answer:

A. Electric potential energy into kinetic energy

Explanation:

The electric potential energy of the charged particles is converted into kinetic energy as the electron is released.

5 0
3 years ago
Read 2 more answers
A box of books weighing 290 N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 34.
NARA [144]

Answer: 1.95s

Explanation:

Given

ma = 290 cos 34.9 - fk

fk = 290 cos 34.9 - ma

fn = mg + 400 sin Φ

fn = 290 + 400 sin 34.9

fn = 290 + 228.9

fn = 518.9

fk = fn * uk

uk = 0.57

290 cos 34.9 - ma = 518.9 * 0.57

290 cos 34.9 - ma = 295.8

290 cos 34.9 - 295.8 = ma

ma = -58

m = 290/10 = 29

a = 58/29

a = 2

Using equation of motion

S = ut + .5at²

3.8 = 0 + .5*2*t²

3.8 = t²

t = 1.95s

3 0
3 years ago
Lava that cools so quickly that ions do not have time to arrange into crystals will form igneous rocks with a _____.
tamaranim1 [39]
The answer is glassy texture
8 0
3 years ago
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