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The escape velocity of a bullet from the surface of planet Y is 1823 m/s. Calculate the escape velocity from the surface of the planet X if the mass of planet X is 1.47 times that of Y, and its radius is 0.839 times the radius of Y (in m/s).I need a final answer at the end please. Thanks.
A 1.78 m long air column is open at both ends. The frequency of a certain harmonic is 828 Hz, and the frequency of the next-higher harmonic is 920 Hz. find out the speed of sound in the air column.
4 kg of liquid seawater with initial temp 0 C and salinty 3 % is mixed with pure water with initital temp 15 C the system reaches equilibrium at 5 C
The sound intensity of a whisper is 1.0x10^-10 W/m^2 at one meter distance from the source. At what distance does the intensity level drop by an additional 1dB
What is the maximum speed with which a 1200- car can round a turn of radius 71 on a flat road if coefficient of static friction between tires and road is 0.45.
A person with perfect pitch sits on a bus bench listening to the 441-Hz horn of an approaching car. If the person detects a frequency of 479 -Hz, how fast is the car moving.
A 2.10 x 10^3 kg car starts from rest at the top of a 4.70 m long driveway that is inclined at 25° with the horizontal. If an average friction force of 4.0 x10^3 N impedes motion, find out the speed of the car at the bottom of the driveway.
The ball is 21.9 m from the goal post. The ball is kicked with an initial velocity of 19.8 m/s at an angle θ above ground. Between what two angles, θ1 and θ2, will the ball clear the 2.74m high crossbar.
Earlier we described the fact that entrepreneurs score significantly lower than managers on agreeableness. Explain how would you reconcile this finding with Sutton's point?
A 10 cm high object is situated 25 cm in front of a convex mirror that has a radius of curvature of 1.00 102 cm.
Two point charges are located on the axis as follows: charge = -2.00 at = -0.500 , and charge = 2.80 at the origin ( = 0). What is the magnitude of the net force exerted by these two charges on a third charge = 9.00 located at = 0.250?
We drop a 26-g ice cube (0C) into 1000 g of water (20C). Find the total change of entropy of the ice and water when a common temperature has been reached
A 1650-kg car is traveling at 34 m/s. How fast must a 91 kg bicycle and rider be traveling to have the same kinetic energy as the car.
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