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Suppose that a block sliding with positive velocity v on a horizontal surface experiences a drag force F(v)=-F_0*e^(Kv), where F_0 and K are positive constants. At time t = 0, the block is at position x = 0, with initial positive velocity v0. Find the time at which the velocity goes momentarily to zero, and the distance x the block has travelled by this time.
gas at constant t and p is contained in a supply line connected through a valve to aclosed tank containing the same gas
What is the magnitude of the contact force on the student by the backpack.
A 0.04-kg baseball traveling in a horizontal direction with a speed of 16 m/s hits a bat and is popped straight up with a speed of 15 m/s. what was the average force of the bat on the ball
A freezer is used to freeze 5.0 L of water completely into ice. The water and the freezer remain at a constant temperature of T = 0°C. Determine the change in the entropy of the water
The maximum angular magnification of a magnifying glass is 12.0 when a person uses it who has a near point that is 25.0 cm from his eyes. Obtain the focal length of the objective
A 240 N sphere 0.20 m in radius rolls, without slipping 6.0 m downa ramp that is inclined at 28 degrees with the horizontal. What is the angular speed of the sphere
A potential difference of 4.75 kV is established between parallel plates in air. what is the minimum separation the plates can have without ionizing the air
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
in april 2010 the worst oil spill until that time occurred when an explosion and fire on the deepwater horizon left 11
What is the rms speed of nitrogen molecules contained in an 7.9 m3 volume at 2.1 atm if total amount of nitrogen is 1100 mol.
in a rectangular corrdinate system a postitve point charge q 6.00nc is placed at the point x .150 m y 0 and an
The speed distribution of molecules in the Earth's atmosphere has a significant impact on its composition. What is the average speed of a nitrogen molecule in the atmosphere
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