As shown above, two beams of laser light are shown onto two different pieces of plastic. The two beams both have a wavelength of λ = 630 nm and start out in phase 2.5 m to the left of the plastic pieces. The top piece, #1, has an index of refraction of 1.26 and a thickness of 3.2 μm. The bottom piece, #2, has an index of refraction of 1.44 and a thickness of 2.8 μm. The beams continue on and shine on a wall 2.2 m to the right.
Expressed in terms of wavelengths, what is their phase difference when they both have emerged from the plastic?1 AnswerPhysics8 months ago
Let Line 1:
x = 2-2t, y = 4t, z = 1-t
and Line 2:
x = s, y = 3 -3s, z = 1
a) Verify that the lines are skew lines. (i.e., show that they do not intersect and are not parallel).
b) Find the equations of the parallel planes through each line.
I understand part a, i need help with part b1 AnswerMathematics11 months ago
A 170 kg rocket is moving radially outward from the earth at an altitude of 190 km above the surface with a velocity of 3.5 km/sec. At this point, its final stage engine shuts off.
1) Ignoring any minor air resistance, what is the rocket's velocity 790 km above the surface of the earth?
2) Again ignoring any minor air resistance, what is the rocket's velocity 790 km above the surface of the earth if its mass were 340 kg?
3) What is the maximum height of the rocket above the earth's surface (using the initial rocket mass of $1 AnswerPhysics1 year ago