given wavelength = 121.9
hydrogen transition wavelength = 121.6
X=121.9/121.6 = 1.002 . moving away from us
velocity = 3*10^8( 121.9/121.6) = 3.007*10^8 m/s
Part E Find the speed for a star in which this line appears at wavelength 121.9...
Part A With what minimum speed must you toss a 190 g ball straight up to just touch the 11-m-high roof of the gymnasium if you release the ball 1.6 m above the ground? Solve this problem using energy. Express your answer to two significant figures and include the appropriate units. CHÅR O ? Value Units Vmin = Submit Request Answer Part B With what speed does the ball hit the ground? Express your answer to two significant figures and...
A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of 1 = 121.1 nm Part A What is the atom's final speed if it now emits an identical photon in a direction that is perpendicular to the direction of motion of the original photon? Express your answer to three significant figures and include appropriate units. μΑ ? Value Units Submit Request Answer Part B What is the atom's final speed if it now emits an identical...
The data encoded on CDs, DVDs, and Blu-ray discs is read by lasers. Part A What is the wavelength in nanometers of the CD laser (v = 3.85 x 1014 s-1)? Express your answer to three significant figures and include the appropriate units. LHẢ 5 + 6 3 ? Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining FIUDICIU. Part B What is the energy in joules of the CD laser (v = 3.85 x...
I got R eq = 113.53, but for some reason, I was not able to find the needed currents in the circuit. Please give me a clear and detailed answer. Thank you! Review Constants Find io. Use a Y-to-A transformation to find the unknown quantities for the circuit in (Figure 1). Suppose that 0, = 11V. Express your answer to three significant figures and include the appropriate units. MÅ O 2 ? io = -0.011 A io = Submit Previous...
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Problem 3.62 Use a Y-to-A transformation to find the unknown quantities for the circuit in (Figure 1). Suppose that , -8V Part A Find Express your answer to three significant figures and include the appropriate units. LA © ? Value Units Submit Request Answer Part B Findi Express your answer to three significant figures and include the appropriate units. HA O ? Value Units Submit Request Answer Part C Find 12 Express your answer to three significant figures and include...
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A sandbag is dropped from a balloon which is ascending vertically at a constant speed of 7 m/s. The bag is released with the same upward velocity of 7 m/s when t O and hits the ground whent-9s PartA Determine the speed of the bag as it hits the ground. Express your answer to three significant figures and include the appropriate units. u | Value Units Submit Part B Determine the altitude of the balloon when bag hits the ground...
Part D What is the particle's speed at t0s? Express your answer as an integer and include the appropriate units. Revievw The position of a particle as a function of time is given by T where t is in seconds. (6.4 i +24 j)t2 nm, alue Units Submit uest Answer ▼ Part E What is the particle's speed at t1-2.9 s? Express your answer to two significant figures and include the ap propriate units Value Units Submit Part F What...
Part A Which wavelength of light (in nanometers) is emitted if an electron moves from the conduction band to the valence band in a sample of silicon? (Silicon has a band gap of 1.1 eV.) Express your answer to two significant figures and include the appropriate units. Value Units Submit Request Answer