Can anyone please help me convert into radians ? im really bad at this

Mathematics

1 answer:

neonofarm [45]3 years ago

4 0

Question #85 is true. It stands there and TELLS you how to convert from
degrees to radians. Right there, in Question #85, is everything you need to
know in order to do it. Please don't make something hard out of something
easy.

Take Question #86 as an example:

The angle is 80 degrees. According to the recipe in Question #85, you're
supposed to multiply 80 degrees by (pi)/180. Let's try it. It won't bite.

(80) x (pi/180) = (pi) x (80/180) .

Can you simplify the fraction (80/180) ? Divide the top and bottom by 20 ,
and you get 4/9 .

So the whole result is 4 pi / 9 . Son of a gun ! That's the 3rd choice on the list !

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4 0

3 years ago

Read 2 more answers

1. Two object accumulated a charge of

In-s [12.5K]

Answer:

The magnitude of the electric force between these two objects

will be: 181.274 N.

i.e. F $=181.274$ N

Step-by-step explanation:

Two object accumulated a charge of 4.5 μC and another a charge of 2.8 μC.

q₁ = 4.5 μC = 4.5 × 10⁻⁶ C

q₂ = 2.8 μC = 2.8 × 10⁻⁶ C

separated distance = d = 2.5 cm

Calculating the magnitude of the force between two charged objects using the formula:

$F = \frac{1}{4\pi \epsilon_0}\frac{q_1 q_2}{r^2}$

$=\:\frac{4.5\times \:\:10^{-6}\:\times \:\:2.8\:\times \:\:10^{-6}}{4\:\times \:\left(3.14\right)\:\times \:\left(8.85\times \:10^{-12}\right)\times \left(2.5\times \:\:10^{-2}\right)^2}$

$=\frac{10^{-12}\times \:12.6}{10^{-12}\times \:4\times \:8.85\pi \left(10^{-2}\times \:2.5\right)^2}$ ∵ $4.5\times \:10^{-6}\times \:2.8\times \:10^{-6}=10^{-12}\times \:12.6$

$=\frac{10^{-12}\times \:12.6}{10^{-12}\times \:35.4\pi \left(10^{-2}\times \:2.5\right)^2}$ ∵ $\mathrm{Multiply\:the\:numbers:}\:4\times \:8.85=35.4$