Physics College

Which of these is a property of an electromagnetic wave? A)magnetic and electric fields oscillate perpendicular to each other but not to the velocity of the wave B)transports energy C)has a magnetic wave but no electric wave

Answers

Answer 1

Electromagnetic waves :

- are transverse waves

- Can travel through a vacuum

- Tranport energy from one place to another

- can be reflected

-can be refracted

Correct options:

B)transports energy

Related Questions

An archery bow is drawn a distance d = 0.39 m and loaded with an arrow of mass m = 0.088 kg. The bow acts as a spring with a spring constant of k = 195 N/m, and the arrow flies with negligible air resistance. To simplify your work, let the gravitational potential energy be zero at the initial height of the arrow. If the arrow is shot at an angle of θ = 45° above the horizontal, how high, in meters above the initial height, will the arrow be when it reaches its peak?

Answers

The maximum height reached by the arrows is determined as 8.6 m.

What is the initial speed of the arrow?

The initial velocity of the arrow is calculated by applying the principle of conservation of energy as shown below;

K.E = U

where;

K.E is the kinetic energy of the arrowU is the elastic potential energy of the bow

¹/₂mv² = ¹/₂kx²

mv² = kx²

v² = kx²/m

v = √(kx²/m)

where;

k is spring constant of the bowm is the mass of the arrowx is the extension of the bow

v = √(195 x 0.39²/0.088)

v = 18.36 m/s

The maximum height reached by the arrow is calculated as follows;

H = (v² sin²θ) / (2g)

where;

θ is angle of projection of the arrowg is acceleration due to gravity

H = (18.36² (sin45)²) / (2 x 9.8)

H = 8.6 m

Thus, the height of the arrow above the ground when it reaches its peak is 8.6 m.

Learn more about maximum height here: https://brainly.com/question/12446886

#SPJ1

A steel cable on a bridge has a linear mass density of 15 kg/m. If the cable has been pulled taunt with a tension of 5536 N, what is the speed of a wave on it?

Answers

[tex]\begin{gathered} T=5,536N \\ \mu=15\text{ kg/m} \\ v=? \\ v=\sqrt{\frac{T}{\mu}} \\ v=\sqrt{\frac{5,536N}{15\text{ kg/m}}} \\ v=19.21\text{ m/s} \\ The\text{ speed of a wave on the cable is 19.21m/s} \end{gathered}[/tex]

What is the initial velocity of an automobile acquiring a final velocity of 32 m/s with an acceleration of 4.0m/s ²

Answers

Answer:

Explanation:

Given:

V = 32 m/s

a = 4.0 m/s²

__________

V₀ - ?

V = V₀ + a*t

V₀ = V - a*t = 32 - 4*t

Time is not set according to the condition of the problem!

There's not enough given information t o answer the question. It depends on how long the car has been accelerating.

it could be 28 m/s 1 second ago.

it could be 16 m/s 4 seconds ago.

it could be 10 m/s 5.5 seconds ago.

etc.

i'll take a wild guess and speculate that the question actually tells how long the car has been accelerating, but you didn't copy that part.

Other Questions

where is the center of dilation located in the image pictured below? In the picture, the first answer circled is the original answer of the problem. My math teacher simplified this to get the second circled answer. Could you explain how he simplified it? In ATUV, the measure of ZV=90, TV = 28, UT = 53, and VU = 45. What ratiorepresents the cosecant of ZU? Which family spends the largest dollar amount on transportation?Family AFamily BFamily C Question 13 of 25Engineers who work for a museum are designing a scale model of thecontinent of Antarctica using a scale of 1:10,000,000. If Antarctica is about5,300 km (5,300,000 m) across, how wide will the model be?A. 53,000 mB. 0.53 mC. 5.3 mD. 0.00053 m which individual is most closely associated with the changes indicated on these maps? Two students measured a box in class. They used a digital scale and found that the mass was 400 grams. They then measured the box found the length is 2cm, the width is 2cm, and the height is 1cm. What is the density of the object What is the total pressure in kPa exerted by a mixture containing two gases if the partial pressure of one gas is 64 kPa and the partial pressure of the other gas is 50.8 kPa? 5. 8.G.1.5 Right triangle ABC and right triangle ACD overlap as shown below. Angle DAC measures 20 and angle BCA measures 30. B D to 20- A 30 C not drawn to scale What are the values of and y? Using positive integers between 1 and 9 and each positive integer at most once, fill in valuesto get two constraints so that x = 7 is the only integer that will satisfy both constraints atthe same time. x+ < x + x+ > x+ French cooks usually weigh ingredients. A French recipe uses 225 grams of granulated sugar.How many cups are needed if there are 2 cups of sugar per pound: (Note that you are changingfrom units of weight, grams, to units of volume, cups. There are 453.5 grams/pound)cups Choose the response that accurately completes the following sentence. Gross receipts, reported as income in Part 1 of Schedule C, Profit or Loss from Business, may include:A. an amount recovered from a bad debtB. amounts reported to the taxpayer on form 1099-NECC. income reported to the taxpayer on form W-2D. proceeds from a loan Find the lateral surface area of thiscylinder. Round to the nearest tenth.8ft4ftLSA = [ ? ] ft2 I need this done in 20 minutes please and thank you Three people are driving their cars in different directions, in an open field. At one point, while they are all driving, they each measure the other drivers velocities. When they compare measurements afterward, they notice that they all got different measurements from each other. Why do their measurements not match? All of the guests at a wedding choose one option for their dinner the meat option, the fish option, or the vegetarian option. 65% of the guests chose the meat option. 210 guests chose the fish option. 5% of the guests chose the vegetarian option. How many guests chose meat as their dinner option? Cal believes that when you drop two objects if different weights such as a baseball and golf ball, the heavier one the baseball will fall faster. His teacher drops the two balls ans they hit the floor simultaneously Cal, however retain his belief and continuous to assert that the baseball fell faster than the golf ball. Which cognitive learning principle best explain why Cal retains his belief in spite of evidence to contrary. If the time to climb the mountain took an hour more than the time to hike down how long was entire hike? Lawn20 meters-WalkwayGazeboRHQ15 metersA bag of grass seed costs $64.26. If agardener wants to calculate the costofgrass seed required to plant the lawn,what additional information wouldhe need to know?A the location of the walkwayBthe perimeter of the lawn the weight of one bag of grass seedD the area that can be covered byone bag of seed find regular and irregular polygons