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Question1
Visualize a crystal that exploits for binding Coulomb attraction of the positive and negative ions of the identical atom or molecule R. This is believed to occur with certain organic molecules, but it is not found when R is a single atom. Utilize the data in Tables 5 and 6 in Kittel to evaluate the stability of such a form of Na in the NaCl structure, relative to the normal metallic Na. estimate energy at the observed interatomic distance in metallic Na, and use 0.78 eV as the electron affinity of Na.
Question2
An airplane is flying with a velocity of 95.0m/s at an angle of 18.0^circ above horizontal. As the plane is a distance 104m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from a dog will the suitcase land? You can overlook air resistance.
A cable 24 m long and 1.5 mm radius is stretched by a force of 550 N. If the length after stretching is 24.05 m, what is Young's modulus for the cable
Red light travels at 2.07×108 m/s in a particular type of oil. What is the index of refraction for red light in the oil
The strength of interatomic bonding in two elemental crystalline materials is approximately the same, but Material #1 is composed of atoms that are approximately 4 times heacier compared to Material #2.
A 100 block on a frictionless table is firmly attached to one end of a spring with = 27 . The other end of the spring is anchored to the wall. A 22 ball is thrown horizontally toward block with a speed of 5.5.
A 42.0 kg seal at an amusement park slides from rest down a ramp into the pool below. If the seal reaches the water with a speed of 4.30 m/s, what is the work done by kinetic friction
The period of the moon (the time for a complete revolution) is 27.32 days, Determine the angular velocity of the moon
An object falls because of gravity at the rate of -920 cm/s2 (- sign is indicative of a downward direction) for 10.00 Seconds. If it starts from rest (vo = 0) and its position starts from do= 0.0, where is it 10.00 Seconds later.
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. What resistance should be used in the charging circuit if the wipers are to operate once every 1.40 s
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.10×106N , one at an angle 10.0? west of north, What is the total work done by the two tugboats on the supertanker
What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid
Loretta made it known just because someone comes from poverty does not mean this is where you have to live your whole life. She was an amazing women and an inspiration to many.
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