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sattari [20]
3 years ago
13

Why are scientists now more excited about sound levitation than they had been previously?

Chemistry
1 answer:
Olenka [21]3 years ago
3 0

Answer:

Acoustic tractor beams use the power of sound to hold particles in mid-air, and unlike magnetic levitation, they can grab most solids or liquids even small insects. For the first time engineers have shown it is possible to stably trap objects larger than the wavelength of sound in an acoustic tractor beam. This discovery could enable the manipulation of drug capsules or micro-surgical implements within the body. The discovery could even lead to levitating humans.

Explanation:

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Fill in the blank to complete each statement
son4ous [18]

Answer:

1. watershed

2. point

3. nonpoint

Explanation:

The land that supplies water to a river system is called a watershed

Pollution from a single, identifiable source is called point

Pollution that is difficult to link to a particular origin is called  nonpoint

5 0
2 years ago
Read 2 more answers
Integrated rate law for second order unimolecular irreversible
kirill115 [55]

Answer:

The rate law for second order unimolecular irreversible reaction is

\frac{1}{[A]} = k.t + \frac{1}{[A]_{0} }

Explanation:

A second order unimolecular irreversible reaction is

2A → B

Thus the rate of the reaction is

v = -\frac{1}{2}.\frac{d[A]}{dt} = k.[A]^{2}

rearranging the ecuation

-\frac{1}{2}.\frac{k}{dt} = \frac{[A]^{2}}{d[A]}

Integrating between times 0 to <em>t </em>and between the concentrations of [A]_{0} to <em>[A].</em>

\int\limits^0_t -\frac{1}{2}.\frac{k}{dt} =\int\limits^A_{0} _A\frac{[A]^{2}}{d[A]}

Solving the integral

\frac{1}{[A]} = k.t + \frac{1}{[A]_{0} }

5 0
3 years ago
Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water
Varvara68 [4.7K]

Answer:

P_{H_2}=727mmHg

Explanation:

Hello there!

In this case, according to the given data, it is possible to infer that the gas mixture lies on the 15.0 cm-high column of water, so that the total pressure or atmospheric pressure is given by:

P_{atm}=P_{water}+P_{H_2}

Thus, since the atmospheric pressure is 745 mmHg and the vapor pressure of water is 18 mmHg, the pressure of hydrogen turns out to be:

P_{H_2}=P_{atm}-P_{water}\\\\P_{H_2}=745mmHg-18mmHg\\\\P_{H_2}=727mmHg

Best regards!

6 0
3 years ago
WORTH 53 POINTS AND BRAINLIEST!!!
Natali5045456 [20]
The answer would be D carbon dioxide
8 0
3 years ago
Read 2 more answers
This type of chemical bond forms when electrons are either gained or lost by an atom.
Ket [755]
It's ionic because electrictrons are only lost or gained in ionic bonds
5 0
3 years ago
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