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3 years ago

Hey I need help on this please???

Physics

1 answer:

Agata [3.3K]3 years ago

6 0

Answer: it's c or 4.0 m/s

Explanation:

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Light strikes a 5.0-cm thick sheet of glass at an angle of incidence in air of 50°. the sheet has parallel faces and the glass h

mestny [16]

<span>Answer: sin(incidence)/sin(refraction) = n_refraction/n_incidence sin(50) / sin(x) = 1.5 / 1 sin(50)/1.5 = sin(x) sin(x) = 0.511 x = 30.71o B] 50 degrees, same as the angle going in. You can show that by reversing the steps in A. sin(30.7)/sin(x) = 1/1.5 C] The glass is 5 cm thick. The reference angle = 30.7o Tan(30.7) = displacement / thickness Tan(30.7) = x / 5 5*sin(30.7) = x x = 2.97 cm which is the displacement.</span>

4 0

4 years ago

Cual es la energía cinética de un objeto cuya masa es de 2kg y se mueve a una velocidad de 5 m/s2 * a)10 J b)25 J c)50J d)98J

Advocard [28]

Let the mass be m
v = 5m/s
K.E = 25 J
K.E = 1/2 mv^2
25 = 1/2 m (5)^2
25 x 2 = 25m
m = 2 kg
Now if the velocity becomes 3 times then the velocity is 3 x 5 = 15m/S
Now new K.E = 1/2 x 2 x 15^2
= 225 J

7 0

3 years ago

Por una espira de 0.5 m2 de área circula una corriente de 5 A. Calcula la densi- dad de flujo magnético B considerando que la es

Sloan [31]

Answer:

$\beta=B=8.05\mu T$

Explanation:

The density of the magnetic flux is given by the following formula:

$\beta=\frac{\Phi_B}{A}=\frac{ABcos\theta}{A}=Bcos\theta$

The normal vector A and the vector of the magnitude of the magnetic field are perpendicular, then, the angle is zero:

The magnitude of the magnetic field is calculated by using the formula for B at a distance of x to a point in the plane of the loop:

$B=\frac{\mu_oIR^2}{2(x^2+R^2)^{3/2}}$

For x = 0 you have:

$B=\frac{\mu_oIR^2}{2R^3}=\frac{\mu_oI}{2R}$

R is the radius of the circular loop and its values is:

$R=\sqrt{\frac{A}{\pi}}=\sqrt{\frac{0.5m^2}{\pi}}=0.39m$

Then, you replace in the equation for B with mu_o = 4\pi*10^-7 T/A:

$B=\frac{(4\pi*10^{-7}T/A)(5A)}{2(0.39m)}=8.05*10^{-6}T=8.05\mu T$

and the density of the magnetic flux is

$\beta=B=8.05\mu T$

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4 years ago

HELP

sergiy2304 [10]

Answer:

Explanation:

a charged and uncharged object attratct eachother that is the answer your welcome

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3 years ago

What is the slant of a line on a graph called

tatiyna

Ashleybotello0129,

What is the slant of a line on a graph called "the slope." Slopes are in math, and science. Slopes look like slanted lines start from one side and to another.

Hope this helps!

7 0

3 years ago