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3 years ago

When nonmetals bond with other atoms, what usually happens?

Physics

1 answer:

Serga [27]3 years ago

7 0

They share electrons because it is a covalent bond

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Define thermopile and peltiers??

NikAS [45]

Answer:

Thermopile is an electronic device that converts thermal energy into electrical energy.

A Peltier cooler, heater, or thermoelectric heat pump is a solid-state active heat pump which transfers heat from one side of the device to the other, with consumption of electrical energy, depending on the direction of the current.

3 0

3 years ago

The electric field strength at a point in space a fixed (known) distance from a point charge source is 5000 N/C. How does the fi

Romashka-Z-Leto [24]

Answer:

See explanation

Explanation:

Electric field strength;

E = kq/d^2

k= coulombs constant

q= magnitude of charge

d = distance if separation

d is constant

q = 2q

Then;

E = 2 kq/d^2

Hence, the electric field strength will double.

7 0

3 years ago

How much work is done by a babysitter who uses 8000 W of power to lift a baby in 2s?

Solnce55 [7]

Answer:

16000 Joules

Explanation:

8000W x 2

5 0

3 years ago

What derived unit is used to measure the slope of the line in this graph?

vlabodo [156]

Answer:

C. g/cm³

Explanation:

The slope is measured by calculating the variation of the Y values over the X values between two points on a line.

So, the formula is: Slope = Δy/Δx

That means that we also take the units.

In this case, the Y-axis unit is in g, while the X-axis unit is in cm³.

Dividing a Y-variation over an X-variation will give you g/cm³.

In this case, let's assume the line passes through (10,100) (not exactly, but close enough for the example), and it passes through (0,0)

So the slope would be: (100-0) g / (10-0) cm³ = 10 g/cm³

3 0

4 years ago

Vector addition of a=8km[E] and b=13km[E]

AlladinOne [14]

The answer to the question is 21 km towards east.

CALCULATION:

Let us consider two vectors $\vec A \ and\ \vec B$

As per the question, $\vec A=8\ km\ towards\ east$

$\vec B=\ 13\ km\ towards\ east$

It is obvious that two vectors are parallel to each other. Hence, the angle between them is zero i.e $\theta\ = 0^0$

We are asked to calculate the resultant .

As per parallelogram law of vector addition, the magnitude of resultant will be-

$R=\sqrt{A^{2} +B^{2} +2ABcos\theta}$

$=\sqrt{8^2+13^2+2\times 8\times13 cos0}$

$=\sqrt{64+169+208}$ [∵ cos0 = 1]

$=\sqrt{441}\ km$

$=\ 21\ km$

The direction of the resultant will be also towards east as the two vectors are parallel to each other.

Hence, the vector addition of two vectors are 21 km towards east.

8 0

3 years ago