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Two astronauts are 1.0 m apart in theirspaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. The time it takes for soundwaves to travel at 343 m/s through the air between the astronaut sequals the time it takes for the electromagnetic waves to travel tothe earth. How far away from the earth is the spaceship?
A radio station broadcasts with a power of 50,000 watts. Estimate the average intensity of the wave at a distance of 50 km from the radio transmitting antenna
seven charged particles are fixed in place to form a square with an edge length of 3.8 cm. How much work must we do to bring a particle of charge
An RLC circuit with R = 20.4? , L = 355mH , and C = 48.8?F is connected to an ac generator with an rms voltage of 21V, Determine the average power delivered to this circuit when the frequency of the generator is twice the resonance frequency
A billiard ball moving at 5.90 m/sstrikes a stationary ball of the same mass. After the collision,the first ball moves at 5.06 m/s, atan angle of 31.0° with respect tothe original line of motion.
Illustrate what elements of the marketplace in which Mega Tech operates led the organization to believe that project management would improve its operations?
A solid cylinder (with a radius of 25cm and a mass of 4.4kg) is rotating counterclockwise with an angular speed of 0.5 revolutions per second just above a flat surface. What is the angular velocity of the cyclinder after .35 seconds slipping
An organ pipe open at one end has a length of 60 cm. If the speed of sound in air is 340 m/s, what is the lowest frequency produced by the organ pipe
Unless otherwise stated, all objects are located near the Earth's surface, where g = 9.80 m/s2. find the coefficient of kinetic friction between the ice and the puck
In the Bohr model of the hydrogen atom the electron orbits the proton in a circular orbit. Calculate the orbital frequency of the electron
In 2.0 minutes, a ski lift raises six skiers at constant speed to a height of 175 m. The average mass of each skier is 65 kg. Illustrate what is the average power provided by the tension in the cable pulling the lift?
A meter stick lies on the bottom of a 100 cm long tank with its zero mark against the left edge. You look into the tank at a 30 angle, with your line of sight just grazing the upper left edge of the tank.
The electric field between the plates of a parallel plate capacitor is horizontal, uniform, and has a magnitude of 3.5*10^4 N/C. What is the angle made by the thread with the vertical axis
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