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After a star like the Sun stops producing energy via fusion, it collapses into a degenerate object called a white dwarf, with a size similar to Earth. Take the mass of the Sun to be 2.00 x 10^30kg, the radius of the Earth to be 6.40 x 10^3km, and calculate the Fermi energy of the electrons in the dead white dwarf Sun. Assume one electron per nucleon.
A car of mass 1800 travelling at 60.7 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and the car's tires. Use = 9.80 throughout the problem.
The electric field at 0.50 m away from the center of a thin metallic spherical shell of radius 0.30 m is - 400×10^3 V/m. the charge density at the outer surface of the sphere is:
When chasing a hare along a flat stretch of ground, agreyhound leaps into the air at a speed of 10.9 m/s, at an angle of 25° above the horizontal. What is the range of his leap
What is tension in each rope
A rubber raft of mass 3M floats past a dock at 1 m/sec toward the east. A girl of mass 2M runs down the dock and jumps in the raft with a speed of 2 m/sec in the north direction. Find the final velocity of the raft and girl
A boy uses this string to whirl a 10-kg stone in a horizontal circle of radius 10 m. The boy continuously increases the speed of the stone. At approximately illustrate what speed will the string break?
A glass fiber of index 1.50 is used to transmit light but is submerged in water of index 1.33. What is the critical angle for light to stay inside the optical fiber
a man drives a car at a speed of 20 m/s off 30 m high cliff. the road leading to the cliff is inclined upward at angle of 20 degrees. how far from the base of the cliff the car land
Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of -2q. Sphere B carries a charge of +5q. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and..
Determine the location at which the tuning is formed and the vibrating frequency of a string to form a standing wave pattern.
When a resistor is connected across the terminals of an ac generator (104 V) that has a fixed frequency, there is a current of 0.545 A in the resistor. determine the impedance of the series combination
Lasers are used extensively in eye surgery to remove unwanted "material" from the eye or reshape the eye's lens. What is the power during one of these pulses
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