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3 years ago

Different _ of an element have different numbers of neutrons?

Physics

2 answers:

natali 33 [55]3 years ago

4 0

Answer:

Isotopes

Explanation:

Your welcome

uranmaximum [27]3 years ago

4 0

Different isotopes of an element have different numbers of neutrons.

<u>Explanation: </u>

There are various elements existing in the Universe. Each element is made up of atoms and there can be multiple types of atoms of an element based on the numbers and configurations of its sub-particles i.e. protons, electrons and neutrons. These are known as Isotopes.

Isotopes are the specific set of atoms of an element that have same proton and electron counts but different neutron counts. The isotopes have same protons and electrons count, thus having the same atomic number but, different atomic mass number because of different number of neutrons.

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Kids are pelting a window with snowballs. On average, two snowballs of roughly 300-g mass hit the window each second, moving hor

hram777 [196]

Answer:

The average force exerted on the window due to two snowballs is 6 N

Explanation:

Given:

Mass of snowballs $m = 300 \times 10^{-3}$ Kg

Velocity of snowball $v = 10 \frac{m}{s}$

For finding the average force,

Force is equal to the change in momentum,

$F = \frac{dP}{dt}$

Here, final velocity is zero so we write,

$F = \frac{mv}{1}$

Where $dt = 1$ sec

$F = 300 \times 10^{-30} \times 10$

$F = 3$ N

Above value of force is due to one ball, but here given in question there are two ball,

$F = 3 \times 2$

$F = 6$ N

Therefore, the average force exerted on the window due to two snowballs is 6 N

5 0

3 years ago

Do all metals expand the same amount when heated??

ahrayia [7]

Answer:

Explanation:

The rate at which solids expand when heated depends on the substance. Metals tend to have higher rates of expansion (per degree change in temperature) than non-metal solids, but there is variation even among metals. A table of expansion coefficients can be found here or here.

8 0

3 years ago

Read 2 more answers

Suppose the displacement of an object is related to time according to the expression x=By*2, what are the dimensions of B

laiz [17]

Answer:

Explanation:

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3 years ago

How do boron-10 and boron-11 differ?

tensa zangetsu [6.8K]