Determine the ratio of the electron's speed over that of the proton at the end of their respective trajectories? KE = 5.29keV
My question is do I use the kinetic energy to get velocity of electron then proton separately, and afterwards divide the results to obtain the ratio?
because the book states that with large angles you should multiply by two either way I don't get the correct answer based on the formula i used. Whether I multiply by 2 or not the answer still seems to be wrong. Am I not supposed to add at the end then divide by two for the answer?
White light containing wavelengths from 405 nm to 760 nm falls on a grating with 7510 lines/ cm. How wide is the first-order spectrum on a screen 2.29 m away?
Is this correct
sin theta= (1)*(4.05e-7m)/(1.33e-6m)= 0.305 theta=17.8
location= 2x(tan 17.8)= (2*2.29)*0.321=1.47m
sin theta=...
Spy planes fly at extremely high altitudes (24.0 km) to avoid interception. Their cameras are reportedly able to discern features as small as 5.48 cm. What must be the minimum aperture of the camera lens to afford this resolution? (Use lambda = 550 nm.)
This problem is unfamiliar to me, I'm...
Is this correct
sin theta= (1)*(4.05e-7m)/(1.33e-6m)= 0.305 theta=17.8
location= 2x(tan 17.8)= (2*2.29)*0.321=1.47m
sin theta= (1)*(7.60e-7m)/(1.33e-6m)= 0.571 theta=34.8
location= 2x(tan 34.8)= (2*2.29)*0.695= 3.18m
so then should the answer to the question be
3.18m+1.47m/2= 2.33m
White light containing wavelengths from 405 nm to 760 nm falls on a grating with 7510 lines/ cm. How wide is the first-order spectrum on a screen 2.29 m away?
I'm not sure the way this question is worked out, but what I have so far is
sin(theta)=[m*Lambda+ m*Lambda]/d
d=1/7510cm=1.33e-6m...
I have been driving myself crazy trying to figure out this problem, for a while now. I just can't get the right answer. should the number of turns be multiplied or divided by the radius? Please help me out.
Two circular coils, concentric and lying in the same plane, produce magnetic...
A tank of large area is filled with water to a depth of 0.6m. A hole of 6m^2 cross section in the bottom allows water to drain out in a continuous stream. What is the rate at which water flows out the tank in m^3/s?
This is how I figure the problem should be solved:
Q=...
A tank of large area is filled with water to a depth of 0.6m. A hole of 6m^2 cross section in the bottom allows water to drain out in a continuous stream. What is the rate at which water flows out the tank in m^3/s?
This is how I figure the problem should be solved:
Q=...
im back again with another problem. The maximum gauge pressure in a hydraulic lift is 19.3 atm. What is the largest size vehicle ( kg) it can lift if the diameter of the output line is 23.8 cm?
What I did was convert 19.3 atm to 1.96e6 N/m^2, then I got density by using the formual P= rho x g...