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The hydrogen spectrum has a red line at 656 nm and a violet line at434 nm. What angular separation between two spectral lines obtained by a diffraction grating that has 4880lines/cm? (Suppose that the light is incident normally on the grating.)
First order separation
Second order separation
A man in search of his dog drives first 10mi northeast, then 54mi straight south, and finally 6mi in a direction 30° north of west. What are the magnitude and direction of his resultant displacement.
A car of mass 3 x 10^3 kg moving with a velocity of 20 m.s-1 is passing a truck of mass 7.5 x 10^3 traveling at a speed of 16 m.s-1. what is the velocity of the center of mass of the system?
use a computer to produce a table and graph like those in this section for two interacting two-state paramagnets each
A 0.21-kg pinecone falls 10 m to the ground, where it lands with a speed of 12 m/s. How much work was done on the pine cone by air resistance
If a disk rotating at 10 rad/s has a moment of inertia of 0.5 kg m^2. Then another disk with a total mass of 5 kg, What is the angular speed of the new system in units of rad/s
A 2200kg sport utility vehicle travelling at 96 km/h can be stopped in 0.20 s if it hits a concrete wall. Suppose a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash a..
a 4.0 kg block slides along a frictionless surface with a constant speed of 5.0 m/s as shown. What is the speed of the Block at t = 11 seconds
String is wrapped several times around the rim of a small hoop with radius 0.0800 meters and mass 0.137 kg. If the free end of the string is held in place and the hoop is released from rest compute the tension in the string while the hoop descends as..
Derive Lagrange's equation of motion for a uniform thin dizk that rolls without slipping on a horizontal plane under the influence of a horizontal force applied at its center. Determine the generalized force.
In a certain RL time constant circuit, it takes 135 msec for the current to reach maximum after the switch is closed.
question once ignited a small rocket motor on a space craft exerts a constant force of 10 n for 7.80 s. during the burn
Assume you are the fish. You get up every morning and weigh yourself (in water), and find you weigh 0.42 N. You, being a boxfish, are a box measuring 4.164 cm per side. You see a poor, hungry fisherman, and decide to be his dinner. You hook yourself,..
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