I'm glad that it's a pretty straight-forward question :).
However, I'm relatively new to all this so it all seems a but confusing.
So, just to be sure, if I have the molar specific heat... what does that mean exactly? That for every 1°K it's going to gain 29.1°C?
Hmm 29.1°C x (420 -...
Homework Statement
A 1.0 sample of nitrogen gas (diatomic)is heated at constant pressure from 300K to 420K, Cp (nitrogen) = 29.1 Jmol-1°C-1
The thermal energy transferred to the gas is?
1. 8370 J
2. 12,200 J
3. 34.90 J
4. 3590 J
5. 12.20 J
Homework Equations
KE = 1/2mv2 =...
Homework Statement
Monochromatic light of wavelength 694. nm is incident on a diffraction grating with 2192 lines per centimetre. What is the highest order maximum that can be observed?
Homework Equations
dsinθ = mλ
The Attempt at a Solution
d = 2192/cm = 21.92/m
λ = 694 x 10...
Ok, so I've worked out the critical angle for the light - sin-1(n2/n1)
= 41.8°
This gives me the angle, and from trig, I used tan θ = r/30
= 26.8cm
diameter = 26.8 x 2 = 54cm (2sf)
Thank you for the help everyone! It actually feels really great to have found this physics community...
Homework Statement
A small light is 22.0 cm below the surface of a liquid of refractive index 1.50. Viewed from above, the light appears to illuminate a circle on the surface of the water. What is the diameter of the circle?
cm
Homework Equations
Snell's Law
n1sin(θ)1 = n2sin(θ)2...