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On the model leading to (78), calculate the ground-state energy; compare this value with the energy of metallic sodium referred to separated electrons and ion cores. The observed cohesive energy of metallic sodium is about 26 kcal/mole, referred to separated neutral sodium atoms.
If the convection heat transfer coefficient is 15 Btu/h · ft2· °F and the emissivity of the surface is 0.8, determine the total rate of heat transfer from the ball.
Define nuclear fusion and explain it with the help of the Binding Energy per Nucleon. Why would not this reaction happened naturally on Earth?
The distance from knee to the hip is 55 cm. The weight of that partis 9 kg. The distance from knee to the foot is 45 cm. The weight ofthat part is 5 kg. How far from the hip in cm is the gravity pointin the leg if we know that it is somewhere arou..
A 1.2 kg block is released from rest at point A and follows the curved guide as indicated. At point A this block is located 2.2 m higher than at point B. At what speed do the blocks move off to the right
The plunger of a pinball machine has mass 0.440 kg and is attached to a spring of force constant 132.0 N/m. What is the speed vs of the ball when it leaves the plunger
A spacecraft made of aluminum circles the earth at a speed of 7800m/s . Find the ratio of its kinetic energy to the energy required to raise its temperature from 0 oC to 560oC . (The melting point of aluminum is 660 oC . Assume a constant specific he..
Two rods of equal length L = 1.51 m form asymmetric cross. The horizontal rod has a chargeof Q = 100.0 C, and the vertical rod a charge of-Q = -100.0 C. The charges on both rods are distributed uniformly along their length.
A 3.9 kg block originally at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 18 N.
two balls are moving along a frictionless table and collide. ball 1 has a mass of .600 kg and ball 2 has a mass of .400
This seemed pretty straight foward but i get a bad anwser. In the solutions for this problem they just took the diameters, What is the speed in the second segmen
The Kα line in the X-ray spectrum from Platinum metal is found to have a wavelength of 0.0205 nm. Calculate the atomic number of Platinum. Estimate the Kα line X-ray wavelength for gold.
For a 1,498-kg car with a drag constant D=0.45 kg/m, which is moving at a speed of 44 mph. What is the magnitude of the maximum acceleration
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