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Calculate the frequency for the line H(gama) of the Balmer series for hydrogen.
Calculate the photon energy for the H(game) line of the Balmer series for hydrogen.
A small mail bag is released from a helicopter that is descending steadily at 2.83 m/s. After 2.43 s, what is the speed of the mail- bag? How far is the mailbag below the helicopter at 2.43 s
An object of mass m= 1.00 kg is moving initially with a speed of 2.0 m/s along positive x- direction, Determine the speed and direction of motion of second object
For gas storage, thick metal cylinders whith an internal volume of 25 litres are used; typical cylinders can safely maintain a pressure of 180 atm. how many moles of gas can such a cylinder hold
A 310kg wooden raft floats on a lake. When a 75kg man stands on the raft, it sinks 3.20cm deeper into the water. When he steps off, the raft vibrates for a while.
The current in the circuit if the speed v is 0.75 m/s , determine which end of the rod is positive.
The wavelength of an ocean wave
A flashlight bulb with a resistance of 40 ohm is powered with a six volt battery and produces .75W power. obtain the internal resistance of the battery
A 1.30-kg ball, moving to the right at a velocity of +4.52 m/s on a frictionless table, collides head-on with a stationary 8.40-kg ball. Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
assume that you are a Haitian taptap driverand want a more comfortable ride. You decide to replace the springswith new springs that can handle the typical heavy load on yourvehicle. What spring constant do you want your new spring system to have.
A loop of diameter 21 cm is placed in a uniform electric field of magnitude 7.4 102 N/C. What is the electric flux through the loop when the electric field is perpendicular to the plane of the loop
You're carrying a 4 m long, 23 poles to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold other end of the pole 35 from its tip. How much force should you exert to keep the pole motionle..
A 180kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.130m/s. How much work must be completed on the hoop to stop it.
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