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Although they don't have mass, photons-traveling at the speed of light-have momentum. Space travel experts have thought of capitalizing on this fact by constructing solar sails-large sheets of material that would work by reflecting photons. Since the momentum of the photon would be reversed, an impulse would be exerted on it by the solar sail, and-by Newton's Third Law-an impulse would also be exerted on the sail, providing a force. In space near the Earth, about 3.84·10^21 photons are incident per square meter per second. On average, the momentum of each photon is 1.30·10^-27 kg m/s. Assume that we have a 1287 kg spaceship starting from rest attached to a square sail 29.9 m wide.
a) How fast could the ship be moving after 35 days?
b) How many months would it take the ship to attain a speed of 7.93 km/s, roughly the speed of the space shuttle in orbit?
a coil has an inductance of l=0.65mh and resistance of r=0.75 ohms . it is connected to the terminals of a battery with a emf of 1.5V, find the final steady-state or equilibrium current
In an L-R-C series circuit, the rms voltage across the resistor is 28.4 V, across the capacitor it is 91.4 V and across the inductor it is 49.3 V. What is the rms voltage of the source
A beaker has a height of 15.0 cm. The lower half of the beaker is filled with water, and the upper half is filled with oil (n = 1.48). what is the apparent depth of the bottom
A small object of mass 0.0150kg & a charge of 3.1 uC hangs fromthe ceiling by a thread. determine the tension in the thread
show that the horizontal distance that the aircraft engine falls is 8400 m. If the airplane somehow continues to fly as if nothing had happened. where is the engine relative to the airplane at the moment the engine hits the ground?
What are the possible value for of n and m if a) l = 1, b) l = 4, and c) l = 0 ? compute the normalization constant for the wave function
A super ball, made of rubblerlike plastic, is thrown against a hard smooth wall. What is the magnitude of the impulse delivered by the wall
A container of volume V is divided by partitions into three parts containing one kilomole of helium gas, Calculate the kilomole fraction
A dentist's mirror is placed 2.3 cm from a tooth. The enlarged image is located 5.8 cm behind the mirror. How is the image oriented relative to the object
Find the gage pressure at the center of pipe A in pounds per square inch and in kilopascals.
Determine the possible values of the total spin and total angular momentum quantum numbers, S and J, for a helium atom in the 1s3p conguration
Two isotopes having the same mass number are known as isobars. Calculate the difference in binding energy per nucleon for the isobars 23/11 Na and 23/12 Mg
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