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(a) If the position of a chlorine ion in a membrane is measured to an accuracy of 5.00 μm, what is its minimum uncertainty in velocity, given its mass is 5.86 x 10-26 kg?
(b) If the ion has this velocity, what is its kinetic energy in eV? (Compare this with typical molecular binding energies of about 5 eV.)
Two blocks of weights 70.0 and 100.0 N are connected by as massless string and slide down an inclined plane making an angle of 42.0 deg. find the magnitude of the heavier block's acceleration
Find out the velocity of the plane relative to the earth.
Wrongly called for a foul an angry basketball player throws the ball straight down to the floor.if the ball bounces straight up and returns to the floor 2.8s after first striking it, what was the ball's greatest height above the floor?
A steel ball is fastened to a cord and is released from rest when the string is horizontal. At the bottom of its path theball strikes a steel block initially at rest on a frictionless surface as indicated. The collision is elastic.
A ball rolls horizontally off the edge of a tabletop that is5.0 ft hight. It strikes the floor at a point 4.0 ft horizontallyaway from the edge of the table. What was its speed at instant it left the table
the earths magnetic dipole moment is 81022 am2.a. what is the magnetic field strength on the surface of the earth at
a to a closed system we add 28 kj of heat while its internal energy decreases by 24 kj. how much work do we gain or
A great amount of water vapor changes phase to become water in the clouds that form a thunderstorm. Does this process release or absorb thermal energy
In a tractor-pulling contest, a 2500 kg tractor pulls a 5000 kg sledge with an acceleration of 0.61 m/s2. (The tractor rolls on its wheels; the sledge slides.), What is the force of the sledge on the tractor
A point charge q1=4nC is placed at the origin, and a second point charge q2= -3nC is placed on the x-axis at x= 20 cm. A third point charge q3=2.00 nC is to be placed on the x-axis between q1 and q2.
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. Determine how much time elapses between an instant when the object's speed is at a maximum and the next instant when its acceleration is at a maxi..
A particular radioactive source produces 150 mrad of 2 MeV gamma rays per hour at a distance of 1.0 m. How long could a person stand at this distance before accumulating an intolerable dose of 1 rem?
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