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3 years ago

7

An object that has an equal number or protons and electrons

1 answer:

Brut [27]3 years ago

4 0

Answer:

Everything

Explanation:

The amount of charge on a single proton is equal to the amount of charge possessed by a single electron. A proton and an electron have an equal amount but an opposite type of charge. Thus, if an atom contains equal numbers of protons and electrons, the atom is described as being electrically neutral.

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Two points are given in polar coordinates by : (r, θ) = (2.60 m, 50.0°)

alukav5142 [94]

Answer:

The distance between the 2 points is 4.6558 meters.

Explanation:

The distance between 2 points $(r_1,\theta _1),(r_2,\theta _2)$ is given by

$d=\sqrt{r_{1}^{2}+r_{2}^{2}-2r_1\cdot r_2cos(\theta _2-\theta _1)}$

In our case the given 2 points are $(2.60,50.0^{o}),(3.60,-46.0^{o})$ hence the distance is

$d=\sqrt{2.60^{2}+3.60^{2}-2\cdot 2.60\cdot 3.60\cdot cos(-46.0-50)}\\\\\therefore d=4.6558m$

5 0

3 years ago

Which is the most accurate name for the covalent compound P2O3?

dexar [7]

P2o3 is <span>diphosphorus trioxide.
Add water and you get phosphoric acid</span>

6 0

3 years ago

Read 2 more answers

Which of the following is an example of an aerobic activity?

S_A_V [24]

The answer is D.) all of the above

7 0

3 years ago

Read 2 more answers

During physical activity of high intensity, your heart will beat at a percentage of its maximum rate. Whi

Maurinko [17]

Answer:

D

Explanation:

If it is of very high intensity it will be 85-100%

8 0

3 years ago

If my weight on Earth is 140lbs, what is my mass?

SashulF [63]

Answer:

63.57 kg

Explanation:

weight = 140 lbs

Let the mass is m.

1 lbs = 4.45 N

The weight of an object is defined as the force with which our earth attracts the body towards its centre.

Weight is the product of mass of the body and the acceleration due to gravity of that planet.

W = m x g

On earth surface g = 9.8 m/s^2

Now convert lbs in newton

So, 140 lbs = 140 x 4.45 = 623 N

So, m x 9.8 = 623

m = 63.57 kg

Thus, the mass is 63.57 kg.

5 0

3 years ago