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A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that six different wavelengths are observed when the hydrogen relaxes back to the ground state. The wave length of the incident beam is 97.23nm
a) What is the longest wavelength in the emission spectrum of these atoms?
b) what is the shortest wavelength?
The coefficients of static and kinetic frictions for plastic on wood are 0.50 and 0.40, respectively. How much horizontal force would you require to apply to a 3.0 N plastic calculator to start it moving from rest.
What is speed of the wind what is coefficient of static friction
Assume a car's brakes can produce an acceleration of -7 m/s2. If the car is travelling at an initial speed of 28.0m/s, what is the minimum distance necessary to stop car.
A weightlifter's barbell consists of two 15-kg masses on the ends of a 20-kg rod 1.6 m long. find the magnitude of the barbell's angular momentum
A mass of 0.5 kg is suspended from a spring, which stretches by 8 cm. The support from which the spring is suspended is set into sinusoidal motion. At what frequehcy would you expect resonant behavior?
What is the relationship between electric potential and electric field, If we know the electric potential everywhere in a region
The human body can survive an acceleration trauma incident (sudden stop) if magnitude of the acceleration is less than 250;{rm m}/{rm s}^{2}.
A copper wire with a cross sectional area of 3.00 mm^2 and a length of 2.00 m at 20.0 degrees C is connected to a 25.0 V battery, what is the resistance at 20.0 degrees C
Two parallel plates, each with an area of 110, are given equal and opposite charges of magnitude 0.18. The space between the plates is filled with the dielectric material, and the electric field within the dielectric is 0.31.
A 2.45m long copper wire has 1.35V across its ends. Find the electric field strength within the wire
A 1.20 liter flask contains a certain quantity of ideal gas at 305 K. after that an equal number of molecules of the same gas are added to the flask, after which the absolute pressure is 1.30 times its unique value. What is the final temperature.
Velocity and time for the moving particle.
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