Its false sorry love try again

Physics

1 answer:

Kobotan [32]4 years ago

3 0

This is incredibly hilarious

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4. What happens to the composition of an atom to cause it to become positively or negatively charged?

MakcuM [25]

In an atom, you have three particles: protons, electrons, and neutrons.

When you add or subtract electrons from an atom, it means that there are either more protons than electrons (positively charged) or there are more electrons than protons (negatively charged).

You cannot add or subtract protons since they are the atomic number, which means the number of protons determines the element. Neutrons have a neutral charge, so they wouldn't affect the charge at all.

8 0

3 years ago

Suppose a spacecraft orbits the moon in a very low, circular orbit, just a few hundred meters above the lunar surface. The moon

Finger [1]

Spacecraft will be moving in 1700 m/s.

Option C

<h3><u>Explanation: </u></h3>

The diameter of the moon is 3500 km and the free fall acceleration at the surface is given as $1.6\ \mathrm{m} / \mathrm{s}^2$

The radius will be half of the diameter of the moon that can be written as:

$r_{\text {moon }}=1.75 \times 10^{6}$

By the application of the equation for orbit speed, we get

$\begin{aligned}&v_{\text {orbit}}=\sqrt{r \times q}\\&v_{\text {orbit}}=\sqrt{\left(1.75 \times 10^{6}\right) \times\left(1.6\ \mathrm{m} / \mathrm{s}^{2}\right)}\\&v_{\text {orbit}}=1700\ \mathrm{m} / \mathrm{s}\end{aligned}$

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3 years ago

What kind of reaction occurs when potassium is placed in water? a. a single-displacement reaction c. a decomposition reaction b.

satela [25.4K]

The equation for potassium in water is:
K(s) + H20(l) --> H2(g) + K20(aq)
since a element and a compound are reacting, this is a single replacement reaction - which is a)

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4 years ago

An airplane is flying horizontally with a constant momentum during a time interval ?t. (a) Is there a net impulse acting on the

goldenfox [79]

Answer:

Explanation:

Given

Airplane is flying with horizontally with a constant momentum during time interval $\Delta t$

Impulse is given by change in momentum, so there is no net impulse on the Plane because momentum is constant

(b) As there is no change in momentum therefore impulse of thrust and air drag is balanced i.e. both are equal in magnitude but act in opposite direction

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3 years ago

____ are low energy waves found in the electromagnetic spectrum and ____ are high energy waves found in the electromagnetic spec

beks73 [17]

according to the question are microwaves and X-rays

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4 years ago