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sdas [7]
3 years ago
9

PLEASE HELP!!! WILL MARK BRAINLIEST!! Name and define the four fundamental forces.

Physics
2 answers:
Naily [24]3 years ago
5 0

Answer:

<em><u>Gravity</u></em> - is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another.

<em><u>Strong Interaction</u></em> - is the mechanism responsible for the strong nuclear force

<em><u>Weak Interaction</u></em> - is the mechanism of interaction between subatomic particles that is responsible for the radioactive decay of atoms

<em><u>Electromagnetism</u></em> - is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.

Hope this helps!

alukav5142 [94]3 years ago
4 0

Answer:

Gravity.The weak force. Electromagnetism.The strong force.

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Answer:

31.1 N

Explanation:

m = mass attached to string = 0.50 kg

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v = speed of the mass at the highest point = 12 m/s

T = force of the string on the mass attached.

At the highest point, force equation is given as

T + mg =\frac{mv^{2}}{r}

Inserting the values

T + (0.50)(9.8) =\frac{(0.50)(12)^{2}}{2}

T = 31.1 N

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3 years ago
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Given that two vectors A = 5i-7j-3k, B = -4i+4j-8k find A×B​
WARRIOR [948]

\textbf{A}×\textbf{B}= 68\hat{\textbf{i}} + 52\hat{\textbf{j}} - 8\hat{\textbf{k}}

Explanation:

Given:

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The cross product \textbf{A}×\textbf{B} is given by

\textbf{A}×\textbf{B} = \left|\begin{array}{ccc}\hat{\textbf{i}} & \hat{\textbf{j}} & \hat{\textbf{k}} \\\:\:5 & -7 & -3 \\ -4 & \:\:4 & -8 \\ \end{array}\right|

=  \left|\begin{array}{cc}-7 & -3\\\:4 & -8\\ \end{array}\right|\:\hat{\textbf{i}}\:+\:\left|\begin{array}{cc}-3 & \:\:5\\-8 & -4\\ \end{array}\right|\:\hat{\textbf{j}}\:+\: \left|\begin{array}{cc}\:\:5 & -7\\-4 & \:\:4\\ \end{array}\right|\:\hat{\textbf{k}}

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3 years ago
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Multiple-Concept Example 7 and Interactive LearningWare 26.1 provide some helpful background for this problem. The drawing shows
Vlada [557]

Answer:

n = 1.4266

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refractive index of crystalline slab n = 1.665

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n = 1.4266

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