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Rainbow [258]
3 years ago
13

Which of these is true about an object thrown straight up in the absence of air resistance? Its acceleration increases as it fal

ls. Its acceleration and velocity are both momentarily zero at maximum height. Its acceleration is constant. The direction of its velocity is constant.
Physics
1 answer:
Taya2010 [7]3 years ago
8 0
Its acceleration is constant . . . 9.8 M/s-squared downward. That's the acceleration of gravity on Earth.
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If you add 1 proton to Carbon, it will no longer be Carbon, it will be ________________.
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Nitrogen

Explanation:

Adding one proton to a carbon atom makes Nitrogen.

A quick introspection on atoms:

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The difference between an atom and another is the number of protons in them. This is the atomic number.

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When an element gains a proton, it becomes another element.

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This is the proton or atomic number of nitrogen.

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4 0
3 years ago
A beryllium-9 ion has a positive charge that is double the charge of a proton, and a mass of 1.50 ✕ 10−26 kg. At a particular in
seropon [69]

Answer:

Magnetic force, F = 3.52\times 10^{-13}\ N

Explanation:

Given that,

A beryllium-9 ion has a positive charge that is double the charge of a proton, q=2\times 1.6\times 10^{-19}\ C=3.2\times 10^{-19}\ C

Speed of the ion in the magnetic field, v=5\times 10^6\ m/s

Its velocity makes an angle of 61° with the direction of the magnetic field at the ion's location.

The magnitude of the field is 0.220 T.

We need to find the magnitude of the magnetic force on the ion. It is given by :

F=qvB\\\\F=3.2\times 10^{-19}\times 5\times 10^6\times 0.22\\\\F=3.52\times 10^{-13}\ N

So, the magnitude of magnetic force on the ion is 3.52\times 10^{-13}\ N.

3 0
3 years ago
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