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2 years ago

What is an ionic bond?

Physics

2 answers:

skad [1K]2 years ago

7 0

Ionic bond is a bond which is formed by transfer of electrons
It forms inbetween two elements having huge electronegativity differences
It usually forms inbetween metal and nonmetals

Ex:-NaCl

Airida [17]2 years ago

4 0

A.) a bond that forms when electrons are transferred from one atom to another

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Two parallel wires run in a north-south direction. The eastern wire carries 15.0 A northward while the western wire carries 6.0

djyliett [7]

Answer:

The magnitude and direction of the magnetic field is 2.7 x 10⁻⁵ T upwards

Explanation:

Given;

current in the eastern wire, $I_e$ = 15 A

current in the western wire, $I_w$ = 6 A

distance between the wires, d = 30 cm = 0.3 m

The magnetic field at a distance R from a line current I, is given as;

$B = \frac{\mu_o I }{2 \pi R}$

The magnetic field between the wires, are in opposite directions, and since the currents are also in opposite directions, the magnetic fields of the wires will be added.

The total field = magnetic field (east) + magnetic field (west);

$B = \frac{\mu_o I_e}{2 \pi R_e} + \frac{\mu_0 I_w}{2 \pi R_w} \\\\B = \frac{\mu_o}{2\pi} (\frac{I_e}{R_e} + \frac{I_w}{R_w})$

where;

$R_w$ is the distance of the field from west = 10cm = 0.1 m

$R_e$ is the distance of the field on east from west = d - 10cm = 30cm - 10cm = 20cm = 0.2 m

The total magnetic field is;

$B = \frac{\mu_o}{2\pi} (\frac{I_e}{R_e} + \frac{I_w}{R_w})\\\\B = \frac{4\pi *10^{-7}}{2\pi} (\frac{15}{0.2} + \frac{6}{0.1})\\\\B = 2*10^{-7}(75 + 60)\\\\B = 2*10^{-7}(135)\\\\B = 2.7*10^{-5} \ T$

Since total magnetic field is positive, the direction of the field is upwards (positive y direction)

Therefore, the magnitude and direction of the magnetic field is 2.7 x 10⁻⁵ T upwards

3 0

3 years ago

Which point has the coordinates of -2.5 5.5

Blizzard [7]

It's the point that's 2.5 units to the left of the y-axis and 5.5 units above the x-axis. (right there on the picture of the graph that you're hiding from us)

7 0

3 years ago

As you brake your bicycle, your velocity changes from 20 m/s east to 10 m/s east in 5 seconds. What’s your acceleration?

charle [14.2K]

Hello!

$\large\boxed{-2m/s^{2} }$

Find the acceleration using the formula a = (vf - vi) / t where:

vf = final velocity

vi = initial velocity

t = time

Plug in the points above:

vf = +10 m/s

vi = +20 m/s

t = 5 sec

(10 - 20) / 5 = -10 / 5 = -2 m/s²

8 0

3 years ago

When a satellite is a distance R from the center of the Earth, the force of gravity on the satellite is F. What is the gravitati

Lubov Fominskaja [6]

Gravitational force on a satellite is given by the formula

$F = \frac{GMm}{r^2}$

now here we know that force on the satellite is F when its distance from center of Earth is R

Now the distance from the center of earth will be 3R so the force is given as

$F' = \frac{GMm}{(3R)^2}$

$F' = \frac{GMm}{9R^2}$

so if we compare it with initial value of force then it is

$F' = \frac{F}{9}$

so correct answer is

$(1) F/9$

7 0

3 years ago

Read 2 more answers

If a train is travelling 200km/hour eastward for 1800 seconds how far does it travel?

Olenka [21]

Answer:

Distance, d = 99990 meters

Explanation:

It is given that,

Speed of the train, v = 200 km/h = 55.55 m/s

Time taken, t = 1800 s

Let d is the distance covered by the train. We know that the speed of an object is given by total distance covered divided by total time taken. Mathematically, it is given by :

$v=\dfrac{d}{t}$

$d=v\times t$

$d=55.55\times 1800$

d = 99990 m

So, the distance covered by the train is 99990 meters. Hence, this is the required solution.

5 0

3 years ago