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crimeas [40]
3 years ago
5

When light moves from air into glass at an angle, is the light refracted toward or away from the normal?

Physics
1 answer:
Whitepunk [10]3 years ago
6 0

Answer: at an angle !!

Explanation:

light refracts at an angle

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Some of the minerals found in rocks dissolve in water as it flows over the rocks. would these minerals dissolve more quickly
densk [106]
A. Minerals would dissolve faster at the bottom of a waterfall than at a still pond because the water is more turbulent at the base of the waterfall.  The turbulent water has more energy and would facilitate faster dissolution of minerals. 

B. Minerals would dissolve faster in warmer water downstream because the warm water would speed up the rate of dissolution. 


C. Minerals in the sand would dissolve faster because the sand is in small grains and so more surface area is available for dissolution.  
7 0
3 years ago
When there are two light sources then there will be two shadows. Given below is a case where there are two light sources but one
velikii [3]

neither, a shadow cant be darker unless your closer to the surface your pointing the light at.

3 0
3 years ago
The Ha line of the Balmer series is emitted in the transition from n-3 to n 2. Compute the wavelength of this line for H and 2H.
Citrus2011 [14]

Explanation:

According to Rydberg's formula, the wavelength of the balmer series is given by:

\frac{1}{\lambda}=R(\frac{1}{2^2}-\frac{1}{3^2})

R is Rydberg constant for an especific hydrogen-like atom, we may calculate R for hydrogen and deuterium atoms from:

R=\frac{R_{\infty}}{(1+\frac{m_e}{M})}

Here, R_{\infty} is the "general" Rydberg constant, m_e is electron's mass and M is the mass of the atom nucleus

For hydrogen, we have, M=1.67*10^{-27}kg:

R_H=\frac{1.09737*10^7m^{-1}}{(1+\frac{9.11*10^{-31}kg}{1.67*10^{-27}kg})}\\R_H=1.09677*10^7m^{-1}

Now, we calculate the wavelength for hydrogen:

\frac{1}{\lambda}=R_H(\frac{1}{2^2}-\frac{1}{3^2})\\\lambda=[R_H(\frac{1}{2^2}-\frac{1}{3^2})]^{-1}\\\lambda=[1.0967*10^7m^{-1}(\frac{1}{2^2}-\frac{1}{3^2})]^{-1}\\\lambda=6.5646*10^{-7}m=656.46nm

For deuterium, we have M=2(1.67*10^{-27}kg):

R_D=\frac{1.09737*10^7m^{-1}}{(1+\frac{9.11*10^{-31}kg}{2*1.67*10^{-27}kg})}\\R_D=1.09707*10^7m^{-1}\\\\\lambda=[R_D(\frac{1}{2^2}-\frac{1}{3^2})]^{-1}\\\lambda=[1.09707*10^7m^{-1}(\frac{1}{2^2}-\frac{1}{3^2})]^{-1}\\\lambda=6.5629*10^{-7}=656.29nm

5 0
3 years ago
The velocity selector in in a mass spectrometer consists of a uniform magnetic field oriented at 90 degrees to a uniform electri
NeTakaya

Answer:

50k/h is the answer to iy

3 0
3 years ago
Do objects tend to stay moving because of a force called Interia
ahrayia [7]

The first law of Newton’s law state an object in motion will stay in motion and an object at rest will stay at rest unless acted upon with an outside force. Other know as the law of inertia so yes it does

6 0
4 years ago
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