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Even though this experiment is mathematically simple, its conceptual significance is immense. Explain how the experiment confirms the quantized nature of photon energy. How is the connection established between wave and particle theories of light? How are we able to see that electrons in atoms exist in discrete energy orbitals?
A groove on a monophonic phonograph record wigges laterally such tht its amplitude and frequency more or less ocresspond to the sound that is recorded. If at a given moment the needles is moving through the groove at 0.50 m/s, what would be the wiggl..
The magnetic field in the interstellar space of out galaxy is through to be about 10^-10 T in magnitude.how much energy is stored in this field ina cube 10 light-years on edge? (for scale ,note that the nearest star is 4.2 light-years distant and the..
A single string is made up of two strings of different densities joined together. Each of the strings is 1.40 m long. what is the tension on the combined string
a boat has a mass of 6800kg. its engines generate a drive force of 3750n due west while the wind exerts a force of 790n
Richard is driving home to visit his parents. 140 of the trip are on the interstate highway where the speed limit is 65. How many minutes does he save
How much more gravitational potential energy does a 1.8kg hammer have when it is on a shelf 1.4m high than when it is on a shelf 0.90m high
The coefficient of kinetic friction between block A and the cart BC is 0.50. Knowing thatthe cart has a mass of 4 kg and can roll freely, determine (a) the final velocity of the cartand block, (b) the final position of the block on the cart.
The depth of a body of water can be found by emitting sound pulses at the surface and dectecting the pulses reflected from the bottom. what is the depth of the water
A car moves in a circle with constant speed. The tires do not slip on the road. What is the direction of the friction force on the tires by the road
A gass has 100 J of energy in the form of heat is transfered to a system and the system does 150 J of work, what is the change in the internal energy of the system
Dolphins emit clicks of sound for echolocation and communication. Find the difference (in Hz) between this frequency and the number of clicks per second actually emitted by the dolphin
In the physics lab a metal spring is stretched 10cm vertically downward by a 500 g mass attached to it. How much would the similar spring with the same attach mass stretn themon? The mass of the moon is 7.35 x 10 to the 22kg, gravity is 1.62 m/s a..
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