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Verdich [7]
3 years ago
9

How would you graph/sketch 40 lbs at pi/3 south of west

Physics
1 answer:
irinina [24]3 years ago
7 0
Well, pi/3 in Radians is equal to 60 degrees, and if your South is negative y and West is negative x, your line segment will be 60 degrees down of left, if you will. Your question is a little confusing, but I'm assuming you're drawing a force diagram, so probably draw the line segment at that angle and label it with the force of gravity- 40 lbs Hope that helps.
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Two identical closely spaced circular disks form a parallel-plate capacitor. Transferring 1.4×109 electrons from one disk to the
allsm [11]

Answer:

r = 6.5*10^-3 m

Explanation:

I'm assuming you meant to ask the diameters of the disk, if so, here's it

Given

Quantity of charge on electron, Q = 1.4*10^9

Electric field strength, e = 1.9*10^5

q = Q * 1.6*10^-19

q = 2.24*10^-10

E = q/ε(0)A, making A the subject of formula, we have

A = q / [E * ε(0)], where

ε(0) = 8.85*10^-12

A = 2.24*10^-10 / (1.9*10^5 * 8.85*10^-12)

A = 2.24*10^-10 / 1.6815*10^-6

A = 1.33*10^-4 m²

Remember A = πr²

1.33*10^-4 = 3.142 * r²

r² = 1.33*10^-4 / 3.142

r² = 4.23*10^-5

r = 6.5*10^-3 m

3 0
3 years ago
A sinusoidal, transverse wave that propagates in the positive x-direction can be described with the wave function y of xt is equ
myrzilka [38]

Answer:

\omega =\frac{2 \pi }{T} rad/s

Explanation:

The wave function is:

y(xt) = Acos(kx- \omega t)

where :

k = wave number

x = position of a point on the wave

\omega = angular frequency

t = time

What is another way to express the angular frequency (omega)

Angular frequency (omega) can be express as :

\omega =\frac{2 \pi }{T} rad/s ( i.e one repetition that it takes to repeats itself)

4 0
3 years ago
What will happen if an stop able item was to hit an unbreakable item
nataly862011 [7]
It would either break or stop depends on the density
7 0
3 years ago
Two speakers both emit sound of frequency 320 Hz, and are in phase. A receiver sits 2.3 m from one speaker, and 2.9 m from the o
satela [25.4K]

Answer:

Option B

Explanation:

The phase difference is found by subtracting the 2.3m for the receiver from the other speaker which is 2.9m hence

Phase difference= 2.9-2.3= 0.6

3 0
3 years ago
Calculate the momentum of a 1200kg car with a velocity of 25m/s
timurjin [86]
Momentum = mass x velocity
                    = (1200)(25)
Momentum = 30,000 kg m/sec

hope this helps :)


4 0
3 years ago
Read 2 more answers
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