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The electron emitted during \(\beta\) in tritium (a hydrogen atom with two neutrons) hasa kinetic energy of 5.7 KeV. What is the deBroglie wavelength for this electron? What is the deBroglie wavelength for this electron? Would you expect such an electron to behave like a particle or a wave interacting with a DNA molecule that is on the order of 20 Angrstoms wide and why? (Hint: h=6.626*10^-34 Js=4.136*10^-15 eV*s)
In a model AC generator, a 505 turn rectangular coil 7.0 cm by 20 cm rotates at 124 rev/min in a uniform magnetic field of 0.56 T. What is the maximum emf induced in the coil
A tiny sphere with a charge of q = +6.4 µC is attached to a spring. Two other tiny charged spheres, each with a charge of ?4.0-µC, are placed in the positions shown in the figure, in which b = 4.1 cm.
A rectangular container measuring 26 cm 47 cm 59 cm is filled with water. What is the mass of this volume of water in kilograms and grams.
A massless frictionless pulley, an ideal string, and two masses (m1 = 2.50 kg and m2 = 4.00 kg) are connected together, What is the magnitude of the tension force in the string
Richard is driving home to visit his parents. 140 mi of the trip are on the interstate highway where the speed limit is 65 mph. How many minutes does he save
A certain single ion channel is selectively permeable to K and has a resistance of 1.15 GOhms. How many K ions travel through the channel during this time
When a large star becomes a supernova, its core may be compressed so tightly that it becomes a neutron star, what is the speed of a particle (in km/s) on the star's equator
A thin spherical copper shell of radius 9.5 cm carries an excess charge of -4.2 nC. How many excess electrons are on the outer surface of the shell
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The acceleration free-fall on the moon is 1/6 of its value on earth
You drop 320 g of solid ice at ?35°C into a bucket of water (1,200 g) at 45°C. Eventually, the ice all melts, Find the final temperature of the system
A guitar string is 93 cm long and has a mass of 3.6 g. The distance from the bridge to the support post is L = 60 cm, What is the frequency of the second overtone
A spaceship is measured to be 120 m long while it is at rest with respect to an observer. If the spaceship now flies past the observer with a speed of .99c, what length would the observer measure of the spaceship.
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