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A ship on the surface of the ocean receives a sonar echo back from an underwater object. The echo path from the object to the ship is at an angle of 22 degrees above the horizontal and takes 2.5s to return. (Velocity of sound in sea water = 1500m/s). a) What is the distance of the object from the ship? b) What is the depth of the object in the sea?
Calculate the classical momentum of a neutron traveling at 0.997c, neglecting relativistic effects
A bike wheel (I=m*(r^2)) is spinning at 20 rad/s, at which point a 100 g rat jumps onto the wheel, what is the mass of the bike wheel
question1a bridge truss extends 200m across a river. the structure is free to slide horizontally to permit thermal
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.59 × 10-6 T. What is the intensity S of the wave
Water at a pressure of 3.4 atm at street level flows into an office building at a speed of 0.5 m/s through a pipe 7.00cm in diameter. The pipes taper down to 2.6 cm in diameter by the top floor, 28m above.
A closely wound circular coil with a diameter of 4.00cm has 600 turns and carries a current of 0.500 A. What is the magnetic field at the center of the coil
Ships A and B leave port together. For the next two hours, What is the distance between the two ships two hours after they depart
a projectile of mass 0.212kg is shot from a cannon. The end of the cannon barrel is at height 6.4m, the initial velocity of the projectile is 9.3m/s. How long does it take the projectile to hit the ground
A Carnot-efficiency engine operating between a reservoir of liquid mercury at its melting point and a colder reservoir extracts 15.0 J of heat from the mercury and does 4.0 J of work during each cycle. What is the temperature of the colder reservo..
When two identical ions are separated by a distance of 8.3×10?10m , the electrostatic force each exerts on the other is 5.4×10?9N How many electrons are missing from each ion
question1a 12.0kg shell is launched at an angle of 55.0 degrees above horizontal with an initial speed of 150 ms. when
A 107A current circulates around a 2.20-mm-diameter superconducting ring. What is the ring's magnetic dipole moment
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