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
Temka [501]
3 years ago
7

Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?

Physics
2 answers:
ohaa [14]3 years ago
6 0

Answer:

The opposite wave of same frequency...

Explanation:

Let us take an example. We know the noise cancellation property of most of the modern headphones. When sounds from the environment is picked up by the microphone embed into the headphones, a opposite wave of same frequency is transmitted out that interact destructively and causes destructive interference and cancel out each other in this process.

luda_lava [24]3 years ago
4 0

Answer:

The last one

Explanation:

You might be interested in
Please List 3 categories of properties used to classify solids.
icang [17]
Electrical conductivity
Magnetism
Texture

Hope this helps!
8 0
3 years ago
) So we are in a Universe with no center and no edge, but it is expanding... and it might be infinite. And it is all space and t
nekit [7.7K]

Answer:

Explanation:

A lot of physicist and many cosmologist believe by their research works on quantum fluctuation that it is possible for the universe to be created out of nothing. They believe and has almost proved that particle comes in and out of existence from empty space. This idea led them believe that big bang singularity also came out of nothing (hyperspace) by quantum fluctuation creating positive and negative energy of equal amount. Thus conserving  law of energy. In this scenario, positive energy is matter and negative energy is gravity so total energy of universe/big bang singularity is zero. Therefore, it is plausible for our universe to come out of nothing on its  own. But why universe came into existence it's own confirming  the idea of 'why there is something rather than nothing' as Lawrence Maxwell Krauss hypothesized could be correct.

8 0
3 years ago
Describe the flow of energy that causes heat to be produced
Neporo4naja [7]
It may be produced by 
<span>Most of us use the word ‘heat’ to mean something that feels warm, but science defines heat as the flow of energy from a warm object to a cooler object.</span><span>Actually, heat energy is all around us – in volcanoes, in icebergs and in your body. All matter contains heat energy.</span><span>Heat energy is the result of the movement of tiny particles calledatoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another, and the transfer or flow due to the difference intemperature between the two objects is called heat.</span><span>For example, an ice cube has heat energy and so does a glass of lemonade. If you put the ice in the lemonade, the lemonade (which is warmer) will transfer some of its heat energy to the ice. In other words, it will heat up the ice. Eventually, the ice will melt and the lemonade and water from the ice will be the same temperature. This is known as reaching a state of thermal equilibrium.</span>Moving particles<span>Matter is all around you. It is everything in the universe – anything that has both mass andvolume and takes up space is matter. Matter exists in different physical forms – solids, liquids and gases.</span>All matter is made of tiny particles called atoms, molecules and ions. These tiny particles are always in motion – either bumping into each other or vibrating back and forth. It is the motion of particles that creates a form of energy called heat (or thermal) energy that is present in all matter.<span>Image: Particles in collision</span>The particles in solids are tightly packed and can only vibrate. The particles in liquids also vibrate but are able to move around by rolling over each other and sliding around. In gases, the particles move freely with rapid, random motion.Transferring heat energy – particles in collision<span>At higher temperatures, particles have more energy. Some of this energy can be transmitted to other particles that are at a lower temperature. For example, in the gas state, when a fast moving particle collides with a slower moving particle, it transfers some of its energy to the slower moving particle, increasing the speed of that particle.</span><span>With billions of moving particles colliding into each other, an area of high energy will slowly transfer across the material until thermal equilibrium is reached (the temperature is the same across the material).</span>Changing states by heat transferFaster moving particles ‘excite’ nearby particles. If heated sufficiently, the movement of particles in a solid increases and overcomes the bonds that hold the particles together. The substance changes its state from a solid to a liquid. If the movement of the particles increases further in the liquid, then a stage is reached where the substance changes into a gas.Three ways of transferring heat energy<span><span>All heat energy, including heat generated by fire, is transferred in different ways:<span><span>Image: Convection</span><span>Image: Conduction</span><span>Image: Radiation</span></span></span><span>Convection transfers heat energy through the air (and liquids). As the air heats up, the particles move further apart and become less dense, which causes the air to rise. Cooler air below moves in and heats up, creating a circular motion. The warm air circles and heats the room.</span><span>Conduction transfers heat energy through one substance to another when they are in direct contact. The moving molecules of a warm material can increase the energy of the molecules in a cooler material. Since particles are closer together, solids conduct heat better than liquids or gases.</span><span><span>Radiation is the heat that we feel coming from a hot object. It warms the air using heat waves (infrared waves) that radiate out from the hot object in all directions until it is absorbed by other objects. Transfer of heat byradiation travels at the speed of light and goes great distances.</span><span>With a log fire, the air in the room above the fire is heated and rises to create convection currents. The heat felt directly from the fire is transmitted to us through radiation. Conduction helps to keep a fire going by transferring heat energy directly from the wood to neighbouring wood in the fire</span></span></span>An effect of heat – expansion<span>When gases, liquids and solids are heated, they expand. As they cool, they contract or get smaller. The expansion of the gases and liquids is because the particles are moving around very fast when they are heated and are able to move further apart so they take up more room. If the gas or liquid is heated in a closed container, the particles collide with the sides of the container, and this causes pressure. The greater the number of collisions, the greater the pressure.</span><span>Sometimes when a house is on fire, the windows will explode outwards. This is because the air in the house has been heated and the excited molecules are moving at high speed around the room. They are pushing against the walls, ceiling, floor and windows. Because the windows are the weakest part of the house structure, they break and burst open, releasing the increased pressure.</span>
7 0
3 years ago
How many sets of planets would you need to create the mass of the Sun?
kow [346]

Answer:

volume about 1.3 million Earths could fit inside the Sun the mass of the Sun is 1.989 X 10 to the 30 kg about 333000 times the mass of the Earth

Explanation:

step-by-step explanation hope this answer your question

6 0
3 years ago
A chunk of ice with a mass of 1.2 kg melts and absorbs 3.33 x 10³J of energy. Which best describes what has happened in this sys
Maurinko [17]

Answer:

- Its entropy increases.

Explanation:

Entropy is defined as a 'measure of the amount of energy in a physical system that cannot be used to do work.' It is also employed to denote randomness, disorder, or uncertainty of the arrangement/system. In the given system, the melting of ice denotes the 'increase in entropy' as the amount of energy unavailable to do work increases('absorbs 3.33 x 10³J of energy'). Thus, <u>this signifies that the entropy increases with a rise in temperature as it allows the substance to have greater kinetic energy</u>.

3 0
3 years ago
Other questions:
  • According to kinetic-molecular theory, if the temperature of a gas is raised from 100 °c to 200 °c, the average kinetic energy o
    7·2 answers
  • Consider an electron that is 10^-10 m from an alpha particle (q = +3.2 times 10^-19 C). (a) What is the electric field due to th
    6·1 answer
  • certification programs are available at all of the following except A. online schools B. vocational school C. community colleges
    8·2 answers
  • g A rod is 2.0 m long and lies along the x-axis, with one end at the origin. A force of 25 N is applied at the point x = 1.2 m,
    14·1 answer
  • Which of the following accurately describes circuits? A. In a parallel circuit, the same amount of current flows through each pa
    15·2 answers
  • An electron passes through a point 2.35 cm 2.35 cm from a long straight wire as it moves at 32.5 % 32.5% of the speed of light p
    7·2 answers
  • What is the definition of power
    14·2 answers
  • HELP PLEASE. WILL GIVE BRAINLIEST!!!
    12·2 answers
  • G volume of 0.025 m3. If the temperature of the gas is 290 K, what is the rms speed of the gas atoms
    15·1 answer
  • Sonam and Wangchuk are taking part in a long jump event during their school's annual sports day. Sonam ran a few distances befor
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!