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The diffusion rate for a solute is 4.0 × 10-11 kg/s in a solvent-filled channel that has a cross-sectional area of 0.50 cm2 and a length of 0.38 cm. What would be the diffusion rate m/t in a channel with a cross-sectional area of 0.30 cm2 and a length of 0.10 cm?
A speedy tortoise can run at 0.01 meters per second and a hare can run 21 times as fast. In a race they both start at the same time; however the hare stops to rest for 1.50 minutes. So the tortoise wins by a shell (20 cm).
A ball is thrown at an angle of 30.9 degrees above the horizontal at a speed pf 8.77 m/s. What is the vertical component of the ball's velocity
A solenoid of radius 1.1 cm produces a magnetic field at its center is 0.28 T. What is the magnetic flux by the center of the solenoid.
A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel
A thin metallic shell of radius 40 cm has a charge of -25 nC on it. At the center of sphere is a point charge of 35 nC. What is the electric field 15 cm from the center of the shell.
In a ballistic pendulum experiment a 20 g bullet is shot into a 2.3 kg block of wood suspended by a cord of negligible mass. what is the approximate muzzle speed (in m/s) for the gun that fired the bullet
A flight attendant pulls her 64 N flight bag a distance of 370 m along a level airport floor at a constant velocity. The force she exerts is 45 N at an angle of 51° above the horizontal.
The minimum distance required to stop a car moving at 36.0 mi/h is 48 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming same rate of acceleration.
A ring of charge is centered at the origin in the vertical direction, Find the total electric field, E, of the ring at the point P = (2.25 m, 0.00 m)
A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.0 s after being hit. Then 2.5s after reaching its maximum height, ball barely clears a fence that is 97m from where it was hit. Suppose the ground is level..
think about the modes of substances in the gas phase and explain why potential energy is included in the thermal energy of some substances in the gas phase, when a monatomic solid/liquid turns into a gas, what are the PE and KE equal to then
A factory worker accidentally releases a 200 kg crate that was being held at rest at the top of a ramp that is 3.9 m long, How fast is the crate moving as it reaches the bottom of the ramp
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