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The speed of sound in water is 1498 m/s. A sonar signal is sent straight down from a ship at a point just below the water surface, and 1.80 s later the reflected signal is detected. How deep is the ocean beneath the ship?
calculate the entropy change of steam between states p1 36 bar t1 250 oc and p2 22 bar t2 400oc by direct
Two capacitors are connected to a battery. The battery voltageis V = 50 V, and the capacitancesare C1 = 2.00 μFand C2 = 4.00 μF. Determine the total energy stored by the two capacitors when they arewired (a) in paralleland (b) in series.
If wavelength is 5890 , and slits width is 0.25 mm, find its angular separation between central maxima
A high performance solar panel is 24" by 54". Its maximum power output is 100W when placed under full sunlight. What is the efficiency of this panel
determine the r value for a wall constructed as follows the outside of the house consists of lapped wood shingles
a ball is thrown horizontally from the roof of a building 45m tall and lands 24.m from the base. what was the ball's initial speed
an electron starts from rest 0.05m from the centre of a uniformly charged sphere of radius 0.03m. if the sphere carries
a cosmic ray proton is moving at such a speed that it can travel from the moon to earth in 1.70 s. assume earth-moon
A grasshopper makes four jumps. The displacement vectors are (1) 25 cm, due west; (2) 23.5 cm, 50° south of west; (3) 24.5 cm, 56° south of east; and (4) 36 cm, 43° north of east. Find the magnitude and direction of the resultant displacement. Expres..
a charged drop with a mass of 0.25 g is levitated by an electric field directed away from the earth of 860 nc. what is
Illustrates a FBD of the person
Two ice skaters, with masses of 50.0kg and 65.0kg , are at the center of a 40.0m -diameter circular rink. how long does the lighter skater take to reach the edge
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