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A meteor whose mass was about 1.4×10^8kg struck the Earth (Mass of earth = 6.0 x 10^24 kg) with a speed of about 18km/s and came to rest in the Earth. what was the earth's recoil speed? what fraction of the metoer's kinetic energy was transformed to kinetic energy of the earth? by how much did the earth's kinetic energy change as a result of this collision?
q1. a fan at a rock concert is 30 m from the stage where sound intensity level is 110 db. her eardrums have the
Water (? = 1000 kg/m3) is flowing smoothly through a pipe of diameter of 5.0 cm at a speed of 0.25 m/s. Find the pressure in the upper segment of the pipe
question a system consisting entirely of electrons and alpha particles has a net charge of 1.8410-15c and a net mass of
A large tank of water is full and has a depth of 10.0 m. What is the pressure at the bottom of the tank? What would the velocity of the water be
A patient with a dislocated shoulder is put into a traction apparatus, How large should these pulls be
a 100 Watt electric light bulb is plugged into 120 Volt, 60 HZ AC voltage source. What is the peak current in the bulb
A small ball of mass, m = 8.60 × 10-9 g, has acquired an excess charge. The ball is then placed between two parallel plates spaced x = 3.45 mm, How many electrons did the ball gain or lose
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Alan leaves Los Angeles at 8:00 a.m to drive San Francisco, 400 mi away. He travels at a steady 50 mph. find Who gets to San Francisco first
Two blocks connected by a massless rope are placed on an inclined plane as pictured on the right. What is the relationship between the two masses in order for the system to not move
Water flowing through a hose at 4 m/s fills a 900L child's pool in 8 min, What is the diameter in cm of the hose
Two negative and two positive point charges (magnitude = 3.64mC) are positioned on opposite corners of a square (each side = 0.155 m).Determine the magnitude of the force on each charge.
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