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3 years ago

Which literal equations are equivalent to p = mv? Choose all answers that are correct. A. B. C. D

1 answer:

andrey2020 [161]3 years ago

5 0

The answer is letter A. m = p / v.

The solution involves basic algebra and can be seen as follows:
p = mv
mv = p
mv / v = p / v
m = p / v

Thank you for posting your question. Please feel free to ask me more.

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The width of a rectangle is 4x-4 feet and the length is 2x+5 feet. Find the perimeter

Ipatiy [6.2K]

Perimeter is
2 • width+ 2•length=
2• (4x-4)+2•(2x+5)=
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8x-8+4x+10=
Combine like terms
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2 years ago

DJ wants to install a zipline between two trees. The zipline will be strung

jolli1 [7]

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104 ft total

Step-by-step explanation:

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3 years ago

PLEASE HELP IM TIMED<br> If 3^2x+1=3x+^5 what is the value of x

atroni [7]

The correct answer is X=6

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3 years ago

each truck in the line weigh two tons more than the truck before it. the trucks weigh a total of 32 tons.how many pounds does a

mixer [17]

If there are 4 trucks then the first truck weighs x
then x+2tons
then x+4tons
then x+6tons = 32tons
so 4x+12=32
-12 -12
/4 /4
x=5
so plug it back in
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truck 2= 7tons or 14,000lbs
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6 0

3 years ago

Forces of 9 lbs and 13 lbs act at a 38º angle to each other. Find the magnitude of the resultant force and the angle that the re

fiasKO [112]

Answer: $R=20.84\ lb\quad 22.57^{\circ},15.43^{\circ}$

Step-by-step explanation:

Given

Two forces of 9 and 13 lbs acts $38^{\circ}$ angle to each other

The resultant of the two forces is given by

$\Rightarrow R=\sqrt{a^2+b^2+2ab\cos \theta}$

Insert the values

$\Rightarrow R=\sqrt{9^2+13^2+2(9)(13)\cos 38^{\circ}}\\\Rightarrow R=\sqrt{81+169+184.394}\\\Rightarrow R=\sqrt{434.394}\\\Rightarrow R=20.84\ lb$

Resultant makes an angle of

$\Rightarrow \alpha=\tan^{-1}\left( \dfrac{b\sin \theta}{a+b\cos \theta}\right)\\\\\text{Considering 9 lb force along the x-axis}\\\\\Rightarrow \alpha =\tan^{-1}\left( \dfrac{13\sin 38^{\circ}}{9+13\cos 38^{\circ}}\right)\\\\\Rightarrow \alpha =\tan^{-1}(\dfrac{8}{19.244})\\\\\Rightarrow \alpha=22.57^{\circ}$

So, the resultant makes an angle of $22.57^{\circ}$ with 9 lb force

Angle made with 13 lb force is $38^{\circ}-22.57^{\circ}=15.43^{\circ}$

7 0

2 years ago

Read 2 more answers