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3 years ago

The highest point of a wave is called the

Physics

2 answers:

zvonat [6]3 years ago

8 0

the answer is c , crest

Kipish [7]3 years ago

5 0

The highest point of a wave is called the crest. Among the choices, the correct answer is C. The height of the wave can be determined using the crest and the trough. The trough is the lowest point of a wave. The wavelength is the distance between two crests of a wave.

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Look at the picture and answer what the time of day the earth is and what caused it to look like it.

oksano4ka [1.4K]

First Square is Like 12:00pm The Next is Like 12:00am

4 0

3 years ago

Read 2 more answers

Give some everyday examples of the transport of heat by convection and by radiation.

Ksivusya [100]

Answer and Explanation:

TRANSPORTATION OF HEAT THROUGH CONVECTION :

The best example of heat transfer from convection process is fan when there is too hot and we switch on the fan then the air which are produced by fan cools the room this process of removing heat is called connective heat transfer.
When milk is too hot and we want to drink it then we blow air across milk so that milk will become cool this is also a convection process.

TRANSPORTATION OF HEAT THROUGH RADIATION :

The best example of heat transfer from radiation from radiation process is Sun from sun we got heat in form of radiation
When we go on the roof in night in winter days it is so cooled this is also due to radiation process.

4 0

4 years ago

A 50n brick is suspended by a light string from a 30kg pulley which may be considered a solid disk with radius 2.0m. the brick i

igomit [66]

Brick is held at a position which is at height 2 m from the floor

Now it is released from rest and hit the floor after t = 4 s

Now the acceleration of the brick is given by

$y = v_i* t + 0.5 at^2$

$2 = 0 + 0.5 * a * 4^2$

$a = 0.25 m/s^2$

Now in order to find the tension in the string

we can use Newton's law

$F_{net} = ma$

$mg - T = ma$

$50 - T = \frac{50}{9.8}*0.25$

$T = 48.72 N$

part b)

Now for the pulley

moment of inertia= $\frac{1}{2}mr^2$

m = 30 kg

R = 2 m

I = $\frac{1}{2}*30*2^2$

I = 60 kg m^2

Now the angular speed just before brick collide with the floor

$w = \frac{v}{r}[\tex]here we have[tex]v = v_i + a* t$

$v = 0 + 0.25 * 4$

v = 1 m/s

Now we will have

L = angular momentum = I w = $I*\frac{v}{R}$

L = 60 * $\frac{1}{2}$

L = 30 kg m^2/s

8 0

3 years ago

The diagram shows the placement of four bar magnets within the magnetic field of a larger bar magnet. Use claim, evidence, reaso

Alisiya [41]

Different poles : Attract

Similar Poles: Repulse

For the two upper magnets ( 1, 4 ) N-S , N-S ( so attraction )

For the two lower (2,3) S-S S-S ( repulsion )

Considering this case:

F = kQ1Q2/r^2 (coulomb law)

So F is inversely proportional to the distance so the more near the magnet to the main one , the more force it experiences.

Magnet 2 experiences the greatest repulsion force.

3 0

3 years ago

When a car is struck by lightning, the resulting electric field inside the car is.

Nesterboy [21]

Answer: When a car is struck by lightning, the resulting electric field inside the car is zero.

Explanation:

7 0

2 years ago