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A convertible moves toward you and then passes you; all the while, its loudspeakers are producing a sound. The speed of the car is a constant 7.60 m/s, and the speed of sound is 346 m/s. What is the ratio of the frequency you hear while the car is approaching to the frequency you hear while the car is moving away?
An electron is accelerated inside a parallel plate capacitor. What is the final velocity of the electron if you use relativistic mechanics
an alien spaceship traveling at a constant velocity of 13 in the x direction passes the earth call this event a at time
A lamp is designed to operate at a temperature of 3100K. what will be the fractional increase in radiant energy
Astronauts on the space shuttle used radar to determine the magnitudes and direction cosines of the position vectors of two satellites A and B. What is the angle between the two vectors rA and rB
During each cycle a reversible engine absorbs 2550 Joule of heat from a high-temperature reservoir and performs 2100 Joule of work. Find how much heat is exhausted to the low-temperature reservoir during each cycle
A converging lens of focal length 7.830 cm is 19.8 cm to the left of a diverging lens of focal length -6.16 cm. Find the location of the coins final image
as a fish jumps vertically out of the water assume that only two significant forces act on it an upward force f exerted
A particle is traveling in a straight line at a constant speedof 25.0 m/s. Suddenly, a constant force of 15.0 N acts on it, bringing it to a stop in a distance of 62.5 m. (a) What is the direction of the force? (b) Determine the time it takes for ..
Two small balls, each of mass 14g, are each charged with +9.0 nC. What distance apart must they be if the force on one of them has the same magnitude as the weight of that ball?
A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a g and air resistance is negligible, How high above its original point did the ball go
a magnifying glass creates a virtual image of the observed object. explain how it is possible that humans can see the
A spring of k=8 N/m has a block of mass 15 kg attached to it on a frictionless table. how fast will it be moving at its equilibrium position
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