In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge. This resulted in a large movement of roadway, which eventually caused the bridge to fail. What characteristic of waves caused the bridge to collapse? Absorption, because the bridge absorbed all the energy of the wind diffraction, because the wind moved around the bridge, which set the bridge into motion interference, because constructive interference occurred when the wind frequency matched the natural frequency of the bridge interference, because destructive interference occurred when the wind frequency matched the natural frequency of the bridge

Answers

Answer 1

Answer:

interference, because constructive interference occurred when the wind frequency matched the natural frequency of the bridge

Explanation:

Wave interference occurs when two waves with identical wavelength, velocity, frequency, and amplitude meet each other when the waves travel along with the same medium.

The characteristic of waves that caused the bridge to collapse is interference because constructive interference occurred when the wind frequency matched the natural frequency of the bridge

Answer 2

Answer:

C im pretty sure

Explanation:


Related Questions

When water (H2O) freezes into ice, some of the properties have changed. What stays the same? identity of the H2O energy of the H2O arrangement of the H2O property of the H2O

Answers

Answer:

A: The identity of H2O

Explanation:

Got answer right on EDG

Answer:

identity of the H2O

Explanation:

identity of the H2O

All indicate that the universe is

A) rotating.
B) expanding.
C) shrinking.
D) at equilibrium.

Answers

Answer:

if its talking about earth then rotate I'll say

Answer:

universe is expanding

Condensation raises the temperature of the vapor (True or False).

Answers

Answer:

true

Explanation:

I NEED HELP WITH THIS PHYSICS QUESTION

Answers

Answer:

im saying c but not sure if its right

Explanation:

Explain the conversion of energy in a roller coaster. Explain how energy is converted

Answers

As the rollercoaster goes up. kinetic energy changes to gravitational potential energy. When it moves back down, gpe changes back to ke.

Pick a correct term to fill in the blank: kgm/s2, pounds, tons, kg
One Newton equals 0.225

Answers

Answer:

Pounds

Explanation:

what is food poisoning ?​

Answers

Answer:

salmonella and from eating raw food

Explanation:

Answer:

Food Poisoning is bad very bad. You can get the following sicknesses:  cramping, nausea, vomiting, or diarrhea. It usually comes from food that has a lot of Germs in it, Bacteria, Viruses, etc. But it is not usually something that can kill you, just go to your doctor and they might give you medicine to stop the Poisoning.

One cell performs 120 oscillations per minute, the other 240. What will be the ratio of their lengths ( I translated it sorry for mistakes)​

Answers

Answer:

360²

Explanation:

hoped this helped (ejfigueroa5 had the answer thank you to ejfigueroa5)

The speed required of a military jet when taking off from the deck of an aircraft carrier is dependent upon the speed of the carrier and the speed of the wind into which the carrier is moving. The takeoff speed required of a military jet relative to the deck of the carrier is 45 m/s. Determine the acceleration which a military jet must have to take off from the 126-m long runway of the USS Ronald Reagan aircraft carrier.

Answers

9514 1404 393

Answer:

  8.04 m/s²

Explanation:

A suitable formula is ...

  v² = 2ad

  a = v²/(2d) = (45 m/s)²/(2(126 m))

  a ≈ 8.04 m/s²

The acceleration is about 8.04 m/s².

Neutrons have ____
- have positive charge
- are found in the nucleus
- orbit outside the atom
- are a special type of element

Answers

Answer:

opt B is correct

Explanation:

Are found in the necleus

Which waves can travel through space?
OElectromagnetic waves only
OMechanical waves only
OElectromagnetic and mechanical waves O Longitudinal and electromagnetic waves​

Answers

Answer:

A. electromagnetic waves only

Explanation:

brainliest please? :))

a) Electromagnetic waves only can travel through space

What are electromagnetic waves?

Electromagnetic waves are the waves that are propagated by simultaneous period variation of electric and magnetic filed intensity .

Longitudinal wave and mechanical wave require a particular medium to travel , and in vacuum their is no medium that helps  the waves to propagate because their is no particle present in vacuum . Hence , their is absence of any matter , wave cannot travel through it .

Because electromagnetic waves do not need molecule  to travel and electromagnetic wave are transverse waves and they have oscillating magnetic and electric field thus do not need a medium to travel .

hence , correct option a) Electromagnetic waves only

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What is necessary for a metallic bond to form?

The atoms should be in close proximity.
The atoms should be far apart.
The electrons must be attracted to each other.
The nuclei must contain neutrons.

Answers

Answer:

It is B The atoms should be far apart.

Explanation:

I did Ed test :)

Answer:

The answer is B, The atoms should be far apart

Also i think that they both needed to be metals as well, but that is not included

Explanation:

you must record your daily work outs on a?
A. activity chary
B. journal
C.calendar
D. fitness log

Answers

Answer:

D. Fitness log

Explanation:

because you are working out it would me the most since to use something specifically for work outs and exercise

Answer fitness log

Why
Because your working out and your gonna record your work outs which I’m sure a fitness log is for that

A rock is thrown downwards from the edge of the Grand Canyon. With what velocity will it hit the donkey-riding tourist who is 40 m below?​

Answers

Final velocity= 28 m/s

1. Martha bought a six pack of soda on Thursday. She promised her neighbor, Mr. Jimmy, that she would save the cans for him. What are they doing to help our ecosystem?

Answers

Answer:

They are helping the ecosystem

Explanation:

They are helping the ecosystem by making sure those cans are going to be either

a) recycled properly

b) up-cycled for a project of some sorts

a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?
a. 50:1
b. 1:50
c. 5:1
d. 1:5

Answers

Answer:

its b) 1:50 just did it on apex

Explanation:

a toy car that is 0.12 m long is used to model the actions of an actual car that is 6 m long. which ratio shows the relationship between the sizes of the model and the actual car?

a. 50:1

b. 1:50 this is right

c. 5:1

d. 1:5

which is the hottest planet

Answers

Answer:

venus

Explanation:

its the closest to the sun

could you plz vote me brainliest? thx :)

Answer:

Venus because it really close to the sun.

Explanation:

could you guys tell me whether the photo represents a balanced or unbalanced equation​

Answers

Answer:

that is preatty balenced m8

Explanation:

Complete the sentence to explain when waves interact.
Waves interact with
and other

Please help me! I will give brainiest answer to whoever responds within 5 minutes

Answers

Answer:

Waves interact with objects and other waves.

Explanation:

A crate is sliding down an inclined ramp at a constant speed of 0.55 m/s. The vector sum of all the forces acting on this crate must point down the ramp. True or false?

Answers

Answer:

False

Explanation:

Given: A crate is sliding down an inclined ramp at a constant speed of 0.55 m/s.

To find: whether the given statement is true or false

Solution:

As a crate is sliding down an inclined ramp at a constant speed of 0.55 m/s, net force is equal to 0 and so, the vector sum of all the forces acting on the crate can't point anywhere.

So, the given statement is false.

The steam coming off the pot of boiling water is an example of_______________

Answers

Answer:  water vapor

Explanstion

When water is heated it evaporates, which means it turns into water vapor and expands. At 100℃ it boils, thus rapidly evaporating. And at boiling point, the invisible gas of steam is created. ... Those drops of water are called condensation

The steam coming off the pot of boiling water is an example of Water vapor.

Water Vapor

Water throughout a gaseous condition, particularly in the atmosphere and at temperatures lower than the boiling point. This same basic ingredient for cloud as well as rain production is water vapor throughout the environment.

It also serves to maintain the Earth's temperature by reflecting and dispersing solar energy as well as absorbing infrared heat from this same Planet.

Thus the response above is correct.

Find out more information about water vapor here:

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A cat walks 1.5km South and then 2.4km East. What is the total displacement of the cat?

Answers

Displacement = sq root ( 1.5 ^2 + 2.4 ^2) Km
Angle (east of South) = inv tan (2.4/1.5)

_____ is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force

Answers

By definition, Weight is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force.

Weight is called the action exerted by the force of gravity on the body.

The mass (amount of matter that a body contains) of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

The formula that allows you to calculate the weight of any body is:

P = m×g

where:

P = weight measured in N. m = mass measured in kg. g = acceleration of gravity measured in m/s². The acceleration of gravity g is the same for all objects that fall due to gravitational attraction, regardless of their size or composition. For example, as an approximate value on Earth, g = 9.8 m/s².

Then, the weight of an object is the force of gravity on the object, that is, the weight will vary according to the force of gravity that acts on it. So the correct answer is:

Weight is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuring force.

Learn more:

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If the vector below is multiplied by 2, what will be its end point? 5 A. (-6,8) B. (6,8) C. (-6,4) D. (-3,4) SUBMIT E PREVIOUS O re to search​

Answers

Answer:

A

Explanation:

When you multiply a vector by a scalar the magnitude will change but the direction will not change.

If toy weighs 19.6 newtons on earth, what is the mass of the toy?

Answers

Answer:

About 199.864 grams, 4.406 lbs.

Explanation:

What is step one of a star called?​

Answers

Answer: Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. This image shows the Orion Nebula or M42 . Stage 2 - A region of condensing matter will begin to heat up and start to glow forming Protostars.

Explanation:

Which condition causes a hurricane to rotate?

a local storm surge
the Coriolis effect
several large waves
severe coastal flooding

Answers

Answer:

b

Explanation:

The Coriolis effect is a condition which causes a hurricane to rotate in a particular direction. Thus, the correct option is B.

What is the Coriolis effect?

Hurricanes are the enormous storms which come with a rotating wind speed of about 74 miles per hour. The rotating wind that swirls across the warm water of the tropics and also comes with a terrifying force.

The Coriolis force is an inertial or the fictitious force, which acts on the objects which are in motion within a frame of reference that rotates them with respect to an inertial frame. In a reference frame, with the clockwise rotation, the force acts to the left of the motion of the object. Whereas, in one with anticlockwise or counterclockwise rotation, the force acts to the right of the object. The deflection of an object due to this Coriolis force is called as the Coriolis effect.

Therefore, the correct option is B.

Learn more about Hurricane here:

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Which set of experimental conditions would result in the least amount of force on the egg?
a. Drop a small egg from a height of 1 meter into a box of foam.
b. Drop a jumbo egg from a height of 10 meters on a hard surface.
c. Drop a jumbo egg from a height of 10 meters onto 1-inch foam.
d. Drop a small egg from a height of 1 meter into a box of foam.
e. Drop a small egg from a height of 10 meter into a box of foam.

Answers

A because it is the it is the it is the it is there ither iee dd

If the spring constant is doubled, what value does the period have for a mass on a spring?

Answers

if spring constant is doubled, the mass on spring will be doubled as well. according to this formula, F=ke

k stands for spring constant and e stands for the length extended

The period T = 2 pi square root ( k / m )
If the spring constant k is doubled then T increases by a factor of square root 2 so it becomes (square root 2) * T

How do we detect the cosmic microwave background radiation?

Answers

In 1964, US physicist Arno Penzias and radio-astronomer Robert Woodrow Wilson rediscovered the CMB, estimating its temperature as 3.5 K, as they experimented with the Holmdel Horn Antenna.
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