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Assume that an average city uses about 8.5×1013J of energy in a day. The mass is 9.4kg
A fission-based nuclear bomb (such as those used in World War II) uses the same nuclear reactions and an amount of fuel similar to what you calculated in Part A. However, by allowing an uncontrolled chain reaction to occur, all of the bomb's energy can be released in about 1.0×10?6s.
What is the average power Pavg of such a nuclear bomb?
The cohesive energy of a sodium chloride crystal is 6eV per ion pair, Neglecting the energy of repulsion, estimate the interionic spacing
A piece of balsa wood with density 0.50g/cm^3 is released under water. What is the initial acceleration?? Repeat for a piece of maple with density 0.760 g/cm^3? Repeat for a ping-pong ball with the average density of 0.127 g/cm^3.
A typical person radiates about 62 W of power at room temperature. Given this result, how long does it take for a person to radiate away the energy obtained by consuming a 230-calorie doughnut.
The cubit is an ancient unit. Its length equals six palms. (A palm varies from 2.50 to 3.50 inches depending on the individual.) We are told Noah's ark was 300 cubits long, 50 cubits wide and 30 cubits high.
Two people push a stalled car at its front doors, each applying a 260 N force at 25 degree to the forward direction. How much work does each person do pushing car 5.5 m.
Another particle, of mass 7.4 10-27 kg, moves along the positive x-axis with a speed of 4.0 106 m/s. (Assume that mass is conserved.) Evaluate the third particle's speed. What is the direction of motion?
If the mass of the electron is 9.109 × 10–31 kg, illustrate what is the magnitude of its relativistic momentum?
On another planet the simple pendulum consisting of a 0.154 kg mass suspended on a 1.20 m long string has a period of 3.860 seconds. What is acceleration on this planet.
An ocean liner leaves New York City and travels 39.0° north of east for 140 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions.
Find the ranges of this light's frequency. min? max? in Hz, Find the ranges of this light's wave number. min? max? in rad/m
If that angular acceleration is 1.8 rad/s^2, illustrate what is the total moment of inertia about the axis of you and the chair?
Two ocean liners, each with a mass of 40,000 metric tons, are moving on parallel courses, 92 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction? Care for the ships as ..
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