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A 2000 kg submarine rises straight up to the surface of the ocean. If the seawater exerts an upward buoyant force of 16000 N and a resistive downward force of 1000 N, what is the submarine's acceleration?
The electric potential at a position located a distance of 21.6 mm from a positive point charge of 8.70×10-9C, estimate the value of the second charge
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
A ball thrown straight upward returns to its original level in 2.40. What is the initial speed of the second ball if it also returns to its original level in 2.40
What is the total force (magnitude and direction) exerted by these two charges on a third charge q3=+5.00 nC located at y=-0.4000m
A toy car X of mass .200 kg moves along a frictionless surface with a velocity of .180 m/s. It collides with another toy car Y, with the mass .250 kg and a speed of .130 in the same direction.
A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. at what rate does the box accelerate down the slope
A stalactite on the roof of a cave drips water at a steady rate to a pool 3.8 below. What is the velocity of the second drop when the first drop hits the pool
A ball is thrown with an initial velocity of 14m/s. using the approximate value g=10 m/s^2, at what time does the ball reach its high point?
How much power must you exert to horizontally drag a 20.0 kg table 14.0 m across a brick floor in 40.0 s at constant velocity, assuming the coefficient of kinetic friction between table and floor is 0.550.
The temperature of 2.00 moles of argon gas is lowered from 2.80 102 K to 1.90 102 K. Find the change in the average kinetic energy per atom
A frictionless pulley (I=1/2MR^2) has a mass of 2.50kg and a radius of 20.0cm. how much kinetic energy does the stone have
Explain how much work is used to raise A to height h? What happens to the kinetic energy of B if its speed is doubled?
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