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The mass of a copper atom is 5.14 x 10-25 kg, and the density of copper is 8 920 kg/m3. so Find the edge dimension of each cube, which represents an estimate for the spacing between atoms ????
an object is 1m from a screen. at what points may a 0.05-m focal length lens be placed so as to produce a sharp image
Four vectors A,B,C ,D and are shown (not to scale). Vector A has magnitude 23.0 and acts at an angle of 14.7 degrees with respect to the positive x axis. find the magnitude and direction of the resultant vector R
An atom in a metastable state has a lifetime of 6.20 ms. What is the uncertainty in energy of the metastable state
An isolated conductor of arbitrary shape has a net charge of +9.5 x10-6 C. Inside the conductor is a cavity within whichis a point charge q = +2.4 x 10-6 C. InCoulombs, what is the charge on the outer surface of the conductor?
The capacitance of the cell membrane is estimated to be 89 pF, estimate the total number of sodium ion channels in the membrane of a nerve cell
A particle in the solar system is under the combined influence of the Sun's gravitational attraction and the radiation force due to the Sun's rays, Calculate this critical radius
A nitrogen molecule is confined in a cubic box of volume 1.00 m3. Assuming that the molecule has an energy equal to 3/2kT , what is the value of n=(n_x^2+ n_y^2 +n_z^2)^1/2 for this molecule? What is the energy separation between the levels n and n +..
The position of a squirrel running in a park is given by : r=[(00.280 m/s)t+(0.0360 m/s^2)t^2]i+(0.0190 m/s^3)t^3j. At 4.20 , how far is the squirrel from its initial position
Two point charges are fixed on the y axis: a negative point charge q1 = -28 µC at y1 = +0.23 m and a positive point charge q2 at y2 = +0.31 m. A third point charge q = +8.7 µC is fixed at the origin. The net electrostatic force exerted on the char..
In many cars, the passenger's side mirror has the following warning "Objects in mirror are closer than they appear" embossed on the mirror surface. What is focal length of passengers mirror
A length of aluminum wire is connected to a precision 10.0 V power supply, and a current of 0.4258 A is precisely measured at 10.0 degrees celsius, What is the unknown temperature
a disk with a rotational inertia of 5.00 kg m2 and the radius of 0.25 m rotates on a frictionless fixed axis perpendicular to the disk, the maximum angular acceleration of the disk is
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