3 years ago

What is another word for the sound barrier?

Chemistry

2 answers:

rodikova [14]3 years ago

7 0

Answer:

Speed of sound

Explanation:

The sound barrier or sonic barrier is the sudden increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. Therefore, sound barrier and speed of sound are synonyms. In dry air at 20 °C (68 °F), the speed of sound is 343 meters per second (about 767 mph, 1234 km/h or 1125 ft/s).

8090 [49]3 years ago

3 0

Answer:

The Answer is B. Destructive Interference

Explanation:

You might be interested in

Zn + Cut2 Zn+2 + Cu<br> please help lol

Anna35 [415]

Answer:

That's easier for you to come over and watch the answer to the question

6 0

3 years ago

_____________ is the energy stored because of its position or shape.

Natasha2012 [34]

Answer:

Potential Energy is the energy stored because of its position or shape

Explanation:

8 0

3 years ago

If 1000g of water from Luboc River contains 0.0075g of Ca2+ ion, what is the concentration in ppm by mass of Ca2+ present in Lub

marin [14]

7.5 ppm

<h3>Further explanation</h3>

Given

1000 g of water

0.0075g of Ca²⁺ ion

Required

the concentration in ppm by mass of Ca²⁺

Solution

ppm = part per million

solvent = water ⇒ ppm = 1 mg/L(water density is 1 kg / L) or mg/kg

Convert g to mg of Ca²⁺ ion :

0.0075 g = 7.5 x 10⁻³ g = 7.5 mg

Convert g to kg of water :

1000 g = 1 kg water

So the concentration of Ca²⁺ ion :

= 7.5 mg / 1 kg

= 7.5 ppm

5 0

3 years ago

What is an element in science

s2008m [1.1K]

An element is <span>a part or aspect of something abstract, especially one that is essential or characteristic. I hope this helps you good luck :)</span>

5 0

3 years ago

Read 2 more answers

Covalent compounds occur __________. between a metal and a nonmetal that share electrons when nonmetals gain or lose electrons o

wariber [46]

When non metals share electrons

8 0

4 years ago