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Dovator [93]
3 years ago
15

PLEASE HELP!!!! I’ll give brainliest!

Physics
1 answer:
Jet001 [13]3 years ago
3 0
Ok well I know measure of long leg is 30 degrees and short leg is 60 degrees
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PLZ HELP 20 POINTS!!!!!!!!!!!!!!! What atom # is 33?
alexdok [17]
Arsenic is the 33rd atom.
3 0
3 years ago
The center of gravity of a basketball is located _______.
zhenek [66]

Answer:

at its centre

Explanation:

The centre of gravity is a point inside the body where entire weight os the body is said to be concentrated. For geometrical symmetric bodies it lies at the geometric centre of the body.

The base ball is a spherical body, so its centre of gravity lies at its centre.

5 0
3 years ago
Red light of wavelength 630 nm passes through two slits and then onto a screen that is 1.3 m from the slits. The center of the 3
frozen [14]

Answer:

a) f = 4.76 10¹⁴ Hz, b) d = 2.73 10⁻⁴ m, c) θ = 6.923 10⁻³ rad

Explanation:

a) In this problem the frequency of light is asked, let's use the relationship between the speed of the wave, its wavelength and its frequency

           c = λ f

           f = c /λ

           f = \frac{3 \ 10^8}{630 \ 10^{-9}}

           f = 4.76 10¹⁴ Hz

b) slit separation (d)

the expression for the constructive interference of the double-slit experiment is

          d sin  θ = m λ

let's use trigonometry

          tan θ = y / L

          tan θ = \frac{sin \theta}{cos \theta}

in general the angles are small, so we can approximate

          tan θ = sin θ

          tan θ = y/L

we substitute

          d y / L = m λ

          d = m L λ / y

we calculate

          d = 3  1.3  630 10⁻⁹ /0.90 10⁻²

          d = 2.73 10⁻⁴ m

c) the angle

           tan θ = y / L

           θ = tan⁻¹ y / L

           θ = tan⁻¹ 0.9 10⁻² / 1.3

           θ = tan⁻¹ 6,923 10⁻³

let's find the angle in radians

           θ = 6.923 10⁻³ rad

   

4 0
3 years ago
Which of the following force fields will deflect electron beams?
inysia [295]
I'm going to have to go with A Magnetic because it seems to be the only one that makes sense it can't B because electron and Electrical are the same thing its not going deflect it and C it might seem right but gravity has nothing to do with deflection so I pick Magnetic.

So your answer is A.
6 0
3 years ago
Read 2 more answers
A geosynchronous satellite orbits Mars (mass = 6.42 x 1023 kg) once every Martian day, 88640 s. At what radius does it orbit?
Schach [20]

Answer:

angular speed ω = 2PI / T rad/sec  

ω^2*r = M*G/r^2

r = ³√ M*G/ω^2 = ³√6.42*10^23*6.67*10^-11*88640^2/39.5 = 2.04*10^7 m

Explanation:

4 0
3 years ago
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