PHYSICS HIGH SCHOOL

Plizz help meeee thanks and have a wonderful day

Answers

Answer 1

Answer:

Answer:

This is a Upside down Glass of Water Experiment

Explanation:

Answer 2

Answer:

Explanation:

if I interpret the graphic correctly, then there is a basin fully filled with water on the left, then a piece of paper of a piece of glass, where the paper is in contract with the water on the left, and some water is delivered to the right.

then i suspect this shows the capillary effect of very narrow channels of water. like in the very tiny spaces between the fibers of the paper. as long as the paper is in contact with the water on the left, and the level of water is there higher than on the right, the surface tension of water kind of propels itself further along these narrow channels in the paper and supported by gravity and air pressure it drops even into the other side.

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What is an example of a high amplitude sound, and an example of a low amplitude sound?
A 0.52-kg block sits on a lab table. There is a forward force of 2.63 N and a force backwards of 0.67 N. What is the acceleration of the block?

An ultrasound system can produce images of body structures because sound waves

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travel at different speeds through materials of different densities.

All life that we know of is based on carbon. Carbon's ability to form many chemical bonds is an important characteristic that allows it to form the basis of life. Identify two other elements that can probably also form a large number of bonds and that probably have similar properties to carbon.

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One answer I think would be Oxygen

Imagine that you are sitting in a closed room (no windows, no doors) when, magically, it is lifted from Earth and sent accelerating through space with an acceleration of 1g (9.8 m/s2). According to Einstein's equivalence principle, which of the following is true?You won't feel any change and will have no way to know that you've left the earth.
You'll feel a force that will cause your head to repeatedly bang into the ceiling.
You'll know that you left the Earth because you'll be floating weightlessly in your room.
You'll know that you left the Earth because when you drop a ball it will fall sideways.

Answers

Answer:

You won't feel any change and will have no way to know that you've left the earth.

Explanation:

One of the formulations of the principle says that the properties of an inertial system under the effect of a gravitational field are the same as a non-inertial(accelerated) system. The inertial system under the effect of a gravitational field occurs when you are in the room on earth, and when the room is sent accelerating through space you have the non-inertial system. Both have the same properties, so it's impossible to tell the difference if you can't look outside.

Why is it useful to create neptunium by bombarding uranium with protons even though neptunium disintegrates in about two days?

Answers

Answer;

Neptunium breaks down to produce plutonium used in bombs and americium.
it is also used in smoke detectors

Explanation;

Neptunium may be made by bombarding uranium with neutrons. However Neptunium atoms disintegrate to form plutonium.

Neptunium is useful. When Neptunium is bombarded with neutrons it is used to produce plutonium-238 which is used for spacecraft generators and terrestrial navigation beacons.
Plutonium used in bombs and americium. it is also used in smoke detectors.
Additionally, Neptunium is used in neutron detection equipment.

Show that one ampere is equivalent to a flow of 6.25*10^18 elementary charges

Answers

It's not. It's equivalent to the transfer of that many elementary charges every second .

The elementary charge (charge on an electron) is

1.60 x 10⁻¹⁹ coulomb / electron.

The number of electrons in a Coulomb is the reciprocal of that number.

6.25 x 10⁻¹⁸ electrons / Coulomb.

There's the number. 1 Coulomb per second is called 1 Ampere.

How fast must a 6 kg cat run to have kinetic energy of 150 j?