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3 years ago

What kind of energy does a flying bullet have?

Physics

2 answers:

Neko [114]3 years ago

6 0

Answer:

A lot of deadly energy. I think you're looking for kinetic thought

Explanation:

Musya8 [376]3 years ago

3 0

It mainly travels by kinetic energy

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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:

$\textbf{A} = 5\hat{\textbf{i}} - 7\hat{\textbf{j}} - 3\hat{\textbf{k}}$

$\textbf{B} = -4\hat{\textbf{i}} + 4\hat{\textbf{j}} - 8\hat{\textbf{k}}$

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

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

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

$= 68\hat{\textbf{i}} + 52\hat{\textbf{j}} - 8\hat{\textbf{k}}$

5 0

3 years ago

a block of wood of density 0.8 gram per centimetre cube has a volume of 60 cm3 the mass of block will be...?

Tamiku [17]

Density =mass/Volume

0.8=mass/60
Mass=0.8*60
Mass=48g

4 0

2 years ago

Based upon the information you have learned throughout this module on blood spatter analysis, do you feel that analyzing blood s

kompoz [17]

Answer:

I do not think that it is the most reliable way to gain information since it is very hard to do and can be easily messed up. No, I don't think you can charge someone on only evidence from blood spatter, but if there was additional evidence I think that this would definitely help with the case but not on its own, since it doesn’t give you physical evidence about the suspect.

Explanation:

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2 years ago

Please help me

RSB [31]

The potentially harmful effects of mining can be reduced by A. Flushing mines with water.

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3 years ago

Which astronomer spent 20 years plotting the positions of the planets

klio [65]

That was Tycho Brahe, and I thought it was actually more years than that.

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3 years ago

Read 2 more answers