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An aluminum rod with a square cross section is l.3 m long and 5.2 mm on edge.
(a) What is the resistance between its ends?
(b) What must be the diameter of a cylindrical copper rod of length 1.3 m if its resistance is to be the same as that of the aluminum rod?
A massless spring of force constant 19 N/m hangs vertically. A body of mass 0.20-kg is attached to its free end and then released. find the amplitude of the resulting motion
The acceleration due to gravity on the Moon's surface is known to be about one-sixth the acceleration due to gravity on the Earth. find the mass of the Moon in terms of the mass of the Earth
A 1.8 book is lying on a 0.70 -high table. You pick it up and place it on a bookshelf 2.3 above the floor. How much work does gravity do on the book
What force must be applied to push a carton weighing 310 N up a 16° incline, if the coefficient of kinetic friction is 0.41
A tow truck pulls a car 5.2 km along a horizontal roadway using a cable having a tension of 790.
At a particular instant, charge = 4.80×10^?6 C is at the point (0, 0.250 m , 0) and has velocity (9.20 x 10^5 m/s) i. Charge = ?2.90×10?6 C is at the point (0.150 m , 0, 0) and has velocity (-5.30 x 10^-5) j.
Estimate the particle density necessary for bose-Einstein condensation of a hydrogen gas to occur at 100 nK. find the ratio of the thermal wavelength to the atom spacing
1ml of distilled water is injected into a length of 3mm diametre tubing and sealed at the other end by folding over, Why doesn't water drain out when the tube is hung vertically
A proton moves through a magnetic field at 39.1% of the speed of light. obtain the magnitude of the magnetic force acting on the proton
A student is running at her top speed of 5.2m/s to catch a bus, which is stopped at the bus stop. For what time does she have to run in that case
A 400-kg piano slides 3.6 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the force exerted by the man
If the coefficient of volume expansion of mercury is 18x10(^-5) (K^-1), what is the coefficient of volume expansion in the glass?
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