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Two blocks are arranged at the ends of a mass- less string as shown in the figure. The system starts from rest. When the 1.47 kg mass has fallen during 0.326 m, its downward speed is 1.25 m/s. The acceleration of gravity is 9.8 m/s2.
What is the frictional force among the 3.02 kg mass and the table?
An electron has a kinetic energy of 1.2 x 10-17 J. It moves on a circular path that is perpendicular to a uniformmagnetic field of magnitude 4.1 x 10-5 T. Determine the radius of the path.
On a frozen pond, a 11.3 kg sled is given a kick that imparts to it an initial speed of v0 = 1.69 m/s. Use the work kinetic energy theorem to find the distance the sled moves before coming to rest
The crankshaft in a race car goes from rest to 3060rpm in 2.1s. What is the crankshaft's angular acceleration
Energy is transferred to a block of wood by a force at a rate given by: Compute the maximum power delivered to the block and when it occurs.
In an advanced laboratory class a student performs the photoelectric experiment. Ultraviolet light is shone on a particular metal and the stopping potential is measured at the same time. What is Planck's constant based on this measurement
a light truck with manual transmission has a circular brake drum with a diameter of d 320 millimeters. each brake pad
A spherical water drop, 1.20 ?m in diameter, is suspended in calm air owing to a downward-directed atmospheric electric field E = 432 N/C. What is the weight of the drop
An electron with a speed of 3.0x10^6m/s moves into a uniform electric field of magnitude 1.0x10^3 N/C. How far does the electron travel before it is brought to rest
two moles of an ideal gas at 400 K expand quasi-statically and isothermally from an initial volume of 31.0 L to a final volume of 86.0 L. What is the entropy change of the universe for this process
A man pushes a box of mass M with a force F using a stick AB of mass m and making a angle θ with the vertical. The coefficient of friction between the box and the floor is μ. Draw a clear diagram showing all the forces.
if 3.25 x 10-3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.78 hours what
A monatomic ideal gas is held in a thermally insulated container with a volume of 0.06m^3. What volume must the gas be compressed to increase the pressure to 140 kPa
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