1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nimfa-mama [501]
3 years ago
11

How should the table be changed to correctly distinguish between mechanical and electromagnetic waves? Earthquake waves and radi

ation waves need to change places. Light waves and X-ray waves need to change places. Ocean waves and X-ray waves need to change places. Sound waves and light waves need to change places. ...the answer is D
Physics
2 answers:
Agata [3.3K]3 years ago
6 0

Answer:

Electromagnetic waves are visible; mechanical waves are invisible. Electromagnetic waves always reflect; mechanical waves always refract.

Explanation:

erma4kov [3.2K]3 years ago
5 0

Answer:

well you already answered yourself i don't see why you would waist points to do that but yes you are correct .

Explanation:

stay safe and where a mask 2021

You might be interested in
If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is
Harrizon [31]

Answer:

A.) 42.7 m/s

B.) 0.33 m/s^2

C.) 90 kg

Explanation:

A.) If Justin races his Chevy S-10 down highway 37 north for 2,560 meters in 60 seconds, what is his velocity? 

Velocity = displacement/time

Velocity = 2560/60

Velocity = 42.67 m/s

B.) The Chevy S-10 started rounding at 10 meters per hour. What is the acceleration at 30 seconds on the highway?

Acceleration = velocity/time

Acceleration = 10/30

Acceleration = 0.33 m/s^2

C.) The S-10 has a force of 30 N. What is the mass of the car?

Force = mass × acceleration

30 = mass × 0.33

Mass = 30/ 0.33

Mass = 90 kg

8 0
3 years ago
Why does a hot-air balloon rise?
prohojiy [21]

Answer: The weight of the air displaced by the balloon is less than the volume of the balloon.

Explanation:

A hot air balloon is a cloth wrap that contains several thousand cubic meters of air inside (a large volume of air). The burner heats the liquid propane to a gaseous state to generate a huge flame, which can reach more than 3 meters, thus heating the air mass inside the balloon. In this way,<u> its density is modified with respect to the air that surrounds it</u>, because the hot air is lighter than the outside air (less dense), causing the balloon to rise and float.

Now, if we know that the density of a body d is directly proportional to its mass m and inversely proportional to its volume V:

d=\frac{m}{V}

We can deduce that <u>by increasing the volume of the body, its density will decrease.</u>

This is proof of <em><u>Archimedes' Principle</u></em>:  

<em>A body totally or partially immersed in a fluid at rest, experiences a vertical upward thrust equal to the mass weight of the body volume that is displaced.</em>

In this case the fluid is the air outside. So, the warm air inside the balloon, being less dense, will weigh less than the outside air and therefore will receive an upward pushing force or thrust that will make the balloon ascend.

4 0
3 years ago
__________ is the study of things continually moving or at rest.
bogdanovich [222]

Force

Explanation:

so force is your answer see why b/c

4 0
3 years ago
1. What are advantages and disadvantages of using a solar cooker compared to other meanings of cookings?
Brums [2.3K]

Answer:

The biggest advantage of Solar cookers is their eco-friendliness. By exploitation one you’ll decrease your dependence on gas or electricity, cut back your carbon footprint, and save on fuel and therefore the value of fuel on running home appliances. change of state with star cookers clearly needs daylight, that makes it troublesome to use throughout winter months and on rainy days. change of state conjointly takes a considerably longer time compared to traditional strategies. Users should schedule their change of state time and maximize the employment of daylight. As a result, preparation should begin early within the morning in order that the food may be placed in the cooking utensil by noontide.

Explanation:

Hope this helps

8 0
3 years ago
Muscles that are fatigued ____. A. Are injured , B. Should always be rested , C. Can sometimes be exercised further D. Should be
Lorico [155]

Answer:

<u>B. Should be rested</u>

Explanation:

That is the only reasonable answer.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Jeff is part of a trekking team. As he climbs a hill, he drops his water bottle, which has a mass of 0.25 kilograms. The bottle
    14·2 answers
  • 10. Mario is making chocolate. In part of the chocolate-making process, he changed the phase from a liquid to a solid. What happ
    6·1 answer
  • At a constant velocity, you are pulling a 10kg object with. Force P. How much work is done by P to move 87cm? Assume kinetic fri
    12·1 answer
  • Two carts (m1 = m2 = 0.400 kg) are placed on an aluminum track. The first cart is pushed with the initial velocity of 1.5 m/s to
    8·1 answer
  • Can you hear this Picture???<br>If you know it, you get it
    6·1 answer
  • Im not going to lie, this is a physics Q right here<br> plz guys im being serious i need help
    11·1 answer
  • How was electric force used to generate lights
    11·1 answer
  • The speed of sound in air is about 330m/s. How long will it take to travel 1km answer in seconds to one decimal point
    6·1 answer
  • WHAT IS THE MESURE OF THE AVERAGE KINETIC ENERGY OF THE PARTICLES IN A NATERIAL KNOWN AS
    7·1 answer
  • Why are the alkali metals likely to react with group 17 elements?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!