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Scrat [10]
3 years ago
4

Which properties describe covalent compounds? A:hard and brittle. C:able to be dissolved in water. C:unable to conduct electrici

ty. D:high melting and boiling points
Physics
2 answers:
JulijaS [17]3 years ago
8 0
<span>If electrons move from one place to another, electricity is conducted. This happens in the delocalized bonds in metals as well as in static electricity discharge and conductivity in plasmas.If ions move from one place to another, their charges move along with them. As a result, if you have a solution with a dissolved ionic compound (or if you have a melted ionic compound, for that matter), these charges are free to move around if you apply a voltage to them.</span>
Ludmilka [50]3 years ago
7 0

C) unable to conduct electricity

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HELP HELP HELP HELP HELP HELP HELP HELP <br>IM SO SAD ANF SUCH A FAILLURE​
Eddi Din [679]

Answer:

48W

Explanation:

Ok so, the power formula is P= V*I. I plugged in the voltage and current to get P=(6V)(8A).

A.) P=48W.

B.) Knowing this, It isn't working correctly. It's <em>supposed </em>to be 60W but it's 45W.

There must be some type of resistor throwing it off or something but the answer is no!

hope this helps!!

3 0
4 years ago
In an oscillating series RLCcircuit, with a 6.13 Ω resistor and a 15.2 H inductor, find the time required for the maximum energy
ivanzaharov [21]

Answer:

time for maximum energy is 1.718 sec

Explanation:

Maximum energy on the capacitor is given as  =\frac{q_{max}^2}{ 2C}

Maximum energy = \frac{(1/6) Q_2}{2C}

The maximum charge is given by

                                    q_{max} =Qe^{-Rt/2L}

                       Or\frac{q_{max}}{Q} = e^{-Rt/2L}

                    Orln\frac{q_{max}}{Q}  = \frac{-Rt}{2L}

solving for t

t = \frac{2L}{R}\frac{1}{2} ln( 2)

Putting all value to get desired value

 t = ln(2)\times \frac{L}{R}

 t = 0.693\times \frac{(15.2}{6.13} = 1.71 sec

8 0
4 years ago
The prefix semi- means “half,” “partially,” or “somewhat”. Explain why this prefix is appropriate for the term semiconductor
aleksley [76]
Semi-conductors are occasionally conductors based on their needs.  Hope this helps!!!
4 0
3 years ago
Give an example of a situation when it would be appropriate to round a number and a situation in which it would not be appropria
anzhelika [568]
A number might be rounded when determining the number of people who will attend a basketball game. A number should not be rounded when determining the number of students who will participate in a chemistry lab. Only an estimate is needed for attendance at a basketball game because everyone will still get to see the game. In a chemistry lab the correct number of students should be known so that everybody has the proper equipment to use.
8 0
3 years ago
The force required to open air bags is dangerous for:
pentagon [3]

It is dangerous for children. Air bags are dangerous to children age 12 and under because the bag inflates at speeds up to 200 mph and that sudden blast of energy can severely injure or kill passengers who are too close to the air bag. If possible, children should ride in the center of back seat, properly restrained with a seat belt.

5 0
3 years ago
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