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3 years ago

Ke=(1)/(2)mv^(2) solve for m

Mathematics

2 answers:

slava [35]3 years ago

8 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

$m=\frac{2Ke}{v\\^{2} }$

n200080 [17]3 years ago

3 0

Step-by-step explanation:

$\frac{ke}{ {v}^{2} } = \frac{1}{2} m$

$\frac{2ke}{ {v}^{2} } = m$

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(1+cos2x)/(1-cos2x) = cot^2x

sesenic [268]

We will turn the left side into the right side.

$\dfrac{1 + \cos 2x}{1 - \cos2x} = \cot^2 x$

Use the identity:

$\cos 2x = \cos^2 x - \sin^2 x$

$\dfrac{1 + \cos^2 x - \sin^2 x}{1 - ( \cos^2 x - \sin^2 x)} = \cot^2 x$

$\dfrac{1 - \sin^2 x + \cos^2 x }{1 - \cos^2 x + \sin^2 x} = \cot^2 x$

Now use the identity

$\sin^2 x + \cos^2 x = 1$ solved for sin^2 x and for cos^2 x.

$\dfrac{\cos^2 x + \cos^2 x }{\sin^2 x + \sin^2 x} = \cot^2 x$

$\dfrac{2\cos^2 x}{2\sin^2 x} = \cot^2 x$

$\dfrac{\cos^2 x}{\sin^2 x} = \cot^2 x$

$\cot^2 x = \cot^2 x$

8 0

3 years ago

Is 4/5 equal to 5/10?

vfiekz [6]

No, 4/5 does not equal to 5/10.

Because:- When you try to see if it is proportional, it does not equal it.

4/5 ≠ 5/10

Simplify to make sure.

4/5 ≠ 1/2

4/5 is NOT equal to 1/2.

Therefore, our final answer is that 4/5 does not equal 5/10.

4 0

3 years ago

Read 2 more answers

Nine more than the product of seven and three

spayn [35]

Answer:

Step-by-step explanation:

Product is the answer to a multiplication problem.

7x3=21

21 is the product.

21+9=30

30 is 9 more than 21.