All categories

3 years ago

In a polar covalent bonding, electrons are:

Physics

2 answers:

Kay [80]3 years ago

7 0

Electrons are shared

Kazeer [188]3 years ago

6 0

electrons are NOT shared equally between atoms.

You might be interested in

ASAP

Yakvenalex [24]

Answer:

675 KM

Explanation:

hAVE A NICE DAY

5 0

3 years ago

Read 2 more answers

A resistor of 5 Ω is placed in a circuit. The voltage drop across the resistor is 12 V. What is the current through the resistor

Kaylis [27]

Data:

R = 5 Ω
U = 12 V
i = ?

Formula:

 $U = R*i$ → $i = \frac{U}{R}$ 

Solving:

 $i = \frac{U}{R}$
$i = \frac{12}{5}$
$\boxed{i = 2.4A}$

Answer:

The current through the resistor is 2.4 Amperes

5 0

3 years ago

A driven RLC circuit is being driven by an AC emf source with a maximum current of 2.75 A and maximum voltage of 150 V. The curr

weqwewe [10]

Answer:

(a). Z = 54.54 ohm

(b). R = 36 ohm

(c). The circuit will be Capacitive.

Explanation:

Given data

I = 2.75 A

Voltage = 150 V

$\phi = 0.85$ rad = 48.72°

(a). Impedance of the circuit is given by

$Z = \frac{V}{I}$

$Z = \frac{150}{2.75}$

Z = 54.54 ohm

(b). We know that resistance of the circuit is given by

$R = \frac{Z}{\sqrt{1 + \tan^{2}\phi } }$

Put the values of Z & $\phi$ in above formula we get

$R = \frac{54.54}{\sqrt{1 + \tan^{2} ( \ 48.72) } }$

R = 36 ohm

(c). Since the phase angle is negative so the circuit will be Capacitive.

3 0

4 years ago

Why doesn’t a heavy object accelerate more than a light object when they are free falling

Ivahew [28]

I like to think of it this way:

... Gravity pulls on heavy objects with more force than light objects.
(That's why they're "heavy".)

... Heavy objects are the ones with more mass. Light objects are the ones with less mass.

... Gravity is pulling on more mass with more force, and on less mass with less force.

... But from Newton's 2nd law of motion, we know that it takes more force to accelerate more mass, and less force to accelerate less mass.
That's exactly what gravity is doing. So the heavy object with more mass, and the light object with less mass, wind up with the same acceleration.

There you go. With zero math !

6 0

3 years ago

A student pulls on a cart and applies a 20N force at an angle of 25 degrees above the horizontal to

Nady [450]

Answer:

W = 181.26 J

Explanation:

Given that,

The force acting on the cart, F = 20 N

It is at an angle of 25 degrees above the horizontal to move a crate a distance of 10m across the floor.

We need to find work done by the student. The work done by the student is given by :

$W=Fd\cos\theta\\\\W=20\times 10\times \cos25\\W=181.26\ J$

So, the required work done is 181.26 J.

6 0

3 years ago