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3 years ago

How would you classify the wave?

2 answers:

7 0

I've read about it but never seen one. The way I understand it, it's a coordinated physical motion executed by a great number of people, as in a large crowd at a sporting event, timed so that it appears to propagate from one end of the crowd to the opposite end.

I would classify it as a cooperative community activity, involving liberty, equality, and fraternity, executed for the common good.

Gekata [30.6K]3 years ago

5 0

Answer:

One way to categorize waves is on the basis of the direction of movement of the individual particles of the medium relative to the direction that the waves travel. Categorizing waves on this basis leads to three notable categories: transverse waves, longitudinal waves, and surface waves.

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If you toss a ball vertically upward in a uniformly moving train, it returns to its starting place. Will it do the same if the t

gogolik [260]

Answer:No

Explanation:

As the train is accelerating so train velocity will be more as compared to the ball and thus will cover more distance as compared to the ball.

When the ball is thrown upward with some velocity, it also possesses the train velocity at the time of throwing but as time passes velocity of train increases due to acceleration of the train. This causes the ball to fall behind the point of launch.

3 0

4 years ago

Caculate the acceleration of an airplane that goes from 0 knots to 400 knots in 8 seconds

mafiozo [28]

400 divided by 8 is 50, so its acceleration is 50 knots per second, meaning its speed is increasing by 50 every second.

3 0

3 years ago

The octopus’s tentacle keeps _ right after it is bitten off ? a. Moving b. Breathing c. Growing

konstantin123 [22]

Answer:

The answer is A

Explanation:

The octopus’s tentacle keeps moving right after it is bitten off

5 0

2 years ago

a uniform rule balance on a knife edge at the 55cm mark when a mass of 40g is hung from the 95cm mark. find the weight of the ru

BigorU [14]

Answer:

W = 3.1 N

Explanation:

moments about any convenient point will sum to zero.

I choose summing about the knife edge mark and will assume the ruler of weight W is of uniform construction.

I will assume the ruler weight makes a positive moment

W[55 - 50) - 0.040(9.8)[ 95 - 55] = 0

5W = 15.68

W = 3.136

7 0

3 years ago

Two forces and are applied to an object whose mass is 9.31 kg. The larger force is . When both forces point due east, the object

kondor19780726 [428]

Answer:

the magnitudes of the two forces are 45.N and 1.5 N

Explanation:

This in a problem of composition of forces, as the forces are on a single axis, East-West, we can work as a problem of a single dimension, write Newton's second law for each case n

• Two forces to the east

F1 + F2 = m a1

• One force to the east and the other to the west

F1 - F2 = m a2

We see that we have a system of two equations with two unknowns, we proceed to solve it

We add sides equations

F1 + F2 = m a1

F1 - F2 = m a2

2F1 = m (a1 + a2)

F1 = m (a1 + a2) / 2

F1 = 9.31 (0.626 +0.340) / 2

F1 = 4.5 N

We substitute in one of the two equations and find the other force

F1 + F2 = m a1

F2 = m a1 - F1

F2 = 9.31 0.646 - 4.5

F2 = 1.5 N

These are the magnitudes of the two forces 45.N and 1.5 N

5 0

4 years ago