True or False Another name for constructive interference is intense interference

Answers

Answer 1

Answer: The answer to this statement is FALSE

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A 4kg block sitting on the floor, how much potential energy does it have?

Answers

Well, there you have a very important principle wrapped up in that question.

There's actually no such thing as a real, actual amount of potential energy.
There's only potential relative to some place. It's the work you have to do
to lift the object from that reference place to wherever it is now. It's also
the kinetic energy the object would have if it fell down to the reference place
from where it is now.

Here's the formula for potential energy: PE = (mass) x (gravity) x (height) .

So naturally, when you use that formula, you need to decide "height above what ?"

If you're reading a book while you're flying in a passenger jet, the book's PE is
(M x G x 0 meters) relative to your lap, (M x G x 1 meter) relative to the floor of the
plane, (M x G x 10,000 meters) relative to the ground, and maybe (M x G x 25,000 meters)
relative to the bottom of the ocean.

Let's say that gravity is 9.8 m/s² .

Then a 4kg block sitting on the floor has (39.2 x 0 meters) PE relative to the floor
it's sitting on, also (39.2 x 3 meters) relative to the floor that's one floor downstairs,
also (39.2 x 30 meters) relative to 10 floors downstairs, and if it's on the top floor of
the Amoco/Aon Center in Chicago, maybe (39.2 x 345 meters) relative to the floor
in the coffee shop that's off the lobby on the ground floor.

P.E.=mgh

P.E.= mass×gravity×height, therefore 4kg×10×0= 0 J

K.E. is also equal to 0 because the block is not moving, is in the state of Inertia

What is produced when calcium reacts with fluorine in a synthesis reaction? Ca + F2 →

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When calcium reacts with fluorine in a synthesis reaction, calcium fluoride or CaF2 is produced. This compound is a colorless, powdery, and insoluble substance. It is used as a coating in a wide variety of industries such as the windows and lenses industries. Also, it is used in different thermal imaging equipment, spectroscopy, and lasers because of its transparency.

its f2 to the ca +f2

Computers have become a familiar ___ of communication, connecting people around the world.a. mediation
b. proponent
c. medium
d. exposition

Answers

they're a medium (c) of communication

A. mediation is what you so when you want to bring the sides of conflict together

b. is a person who is advocating something

d. is a presentation of some opinion or facts.

How do geologist locate the epicenter of an earthquake?

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by taking measurements from 3 seismograms.

What happens when an organism is removed from a food chain?

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The food chain will collapse with the decreases and increases of other organisms caused by the removed organism.

There will be far-reaching effects. If for example, the producer is removed, the consequences could be dire.

The tendency of an object to resist any change in its motion is known as?

Answers

Answer:

Inertia

Explanation:

The tendency of an object to resist any change in its motion is known as its inertia. The first law of motion is also known as the law of inertia. The inertia of an object can change its speed and the direction of motion. It is related directly to the mass of an object.

A body having more mass will have more inertia while a body having less mas will have less inertia.

It's inertia. A rule that you see every day, for example a brick will stay in the same spot unless a force acts on it.

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A photon with a wavelength of 2.29 × 10^–7 meter strikes a mercury atom in the ground state.Calculate the energy, in joules, of this photon. [Show all work, including the equation and substitution with units.]

Oil flows upward in the wick of a lantern because of liquid property called

An automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the nafural frequency of the automobile in the vertical direction by assuming damping to be negligible.