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3 years ago

Which statement describes the difference between ionic bonds and Van der

Physics

1 answer:

Afina-wow [57]3 years ago

4 0

Answer:

C. lonic bonds involve the transfer of electrons between ions, while

Van der Waals forces involve the attraction of nonpolar molecules.

Explanation:

Just did it

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if we increase the distance traveled over the same period of time, this will decrease the speed. increase the speed. decrease th

Darina [25.2K]

Increase the speed. As speed is directly proportional to distance if time is constant

5 0

3 years ago

Physical science

attashe74 [19]

Answer:

0.56 km/s

Explanation:

We will define a single system of units for measurement, for this case meters per second [m/s]. That is, we must convert the rest of units such as centimeters per second and kilometers per second to meters per second.

$560[\frac{cm}{s}]*(\frac{1m}{100cm} )=5.6[m/s]\\0.56[\frac{km}{s}]*(\frac{1000m}{1km} )=560[m/s]$

Therefore the speed of 0.56 [km/s] is the greatest of all

3 0

4 years ago

An inductor is connected to an AC generator. As the generator's frequency is increased, the current in the inductor A. Increases

Luda [366]

Answer:

B) Decrease

Explanation:

Resistance offered due to inductor in any AC circuit is given as

$X_L = \omega L$

here we know that

$\omega$ = angular frequency

$\omega = 2\pi f$

now by ohm's law we know that

$i = \frac{V}{X}$

here we have

$i = \frac{V}{\omega L}$

so current is inversely depends on the frequency of AC

so if frequency is increased then the current will decrease

6 0

3 years ago

Determine whether each statement concerning different wavelengths of light is true or false.

OlgaM077 [116]

Answer:

Light with a wavelength of 100 nm is completely absorbed by the atmosphere. True

Light with a wavelength of 400 nm has the color of red. False

Light with a wavelength of 280 nm is in the ultraviolet region. False

Explanation:

Light of wavelength 0-100nm can be absorbed by the earths atmosphere

Ultraviolet light ranges between 320-400nm hence the statement above is false.

The wavelength of red colour is around 620-700nm hence the statement above is false.

3 0

3 years ago

Anakin Skywalker's pod racer has a mass of 450 kg. If the top speed of this racer is 947

andriy [413]

Answer:

15,569,653.3 Joules(J)

Explanation:

The equation used to find Kinetic Energy (KE) is

KE = $\frac{1}{2}$ m $v^{2}$

You have been given

m = 450kg

v = 947km/h

KE = ???

Firstly, we need to convert the km/h into m/s as this is the unit used in the KE equation

This can be done by dividing by 3.6

947km/h = 263.056m/s

Substitute you values into the equation

KE = $\frac{1}{2}$ m $v^{2}$

KE = $\frac{1}{2}$ * 450 * $263.056^{2}$

KE = 15,569,653.3 Joules(J)

Round your answer as appropriate

3 0

3 years ago