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Sodium atoms in a Bose-Einstein condensate can slow the speed of light's energy propagation to 70 km/hr. Find the index of refraction for this material, and critical angle for total internal refraction if the atoms are otherwise in vacuum.
A mass-spring system oscillates on a horizontal frictionless surface with an amplitude of 3.41 cm. If the spring constant is 264 N/m, Determine the maximum speed of the mass
An amoeba is 0.00515m away from the objective lens of a microscope. if the objective lens has a focal length of 0.005m, where is the image formed by the objective? What is the magnification of this image?
A rock climber wears a 7.5-kg knapsack while scaling a cliff. After 30 minute, the climber is 8.2 m above the starting point. What is the average power developed by the climber? How much work does the climber do on the knapsack?
A 3.0 g bullet traveling at 350 m/s hits a tree and slows down uniformly to a stop while penetrating a distance of 12 cm into the trees trunk. What is the force exerted on the bullet in bringing it to rest.
A large steam pipe is covered with 1.7-cm-thick insulating material of thermal conductivity 0.21 J/(s m °C). How much energy is lost every second
q1. for the beam given in the figure below assume that the material is astm-a514 steel with elastic modulus and e
A liquid (ρ = 1.65 g/cm3) flows through twohorizontal sections of tubing joined end to end. Calculate the smaller section's pressure
How would you devise a workflow to ensure that the specimen was correctly identified and the laboratory workers safely and efficiently worked with the specimen collected?
An x-ray photon of initial energy 50.0 keV Compton scatters from an electron that is initially at rest. find the wavelength of the back-scattered photon
A spherical balloon is made from a material whose mass is 3.00kg. The thickness of the material is negligible compared to the1.6 m radius of the balloon. Find the absolute pressure of the helium gas
A container holds 2.0 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of an 8.8x10-3 kg bullet with a speed of 880 m/s. What is the Kelvin temperature of the gas?
A uniform plank of length 2m and mass 10kg is supported at each end. If a 75kg person stands 0.5m from the left end of the plank, find the force exerted on the plank by each support
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