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Two men are trying to roll the boulder by applying the forces . Determine the magnitude and direction of the force that is equivalent to the two applied forces. solution
A small block with mass m slides across africtionless horizontal tabletop and undergoes an elastic collision with a large block with mass 50 m which isinitially at rest.
A 20-mC charge is 4 cm above an unknown charge q. The electric intensity at a point 1 cm above the 20-mC charge is 2.20x109 N/C and is directed upward. What are the magnitude and sign of the unknown charge?
A 1.00 m3 container of air absorbs 6098 J of heat at a constant pressure of 1.00 atm. Air has a density of 1.20 kg/m3, Find the increase in the temperature of the air
A 2.00 kg frictionless block is attached to an ideal spring with force constant 314 n/m. Initially the block has a velocity of -3.77 m/s, Find the maximum force the spring exerts on the block
A dentist uses a spherical mirror to examine a tooth. The tooth is 1.06 cm in front of the mirror, and the image is formed 11.4 cm behind the mirror. Determine the mirror's radius of curvature. _____ cm. Determine the magnification of the image.
A boat moves at 12.0m/s relative to the water. how long does it take the boat to make a complete round trip of 1000.0m upstream followed by 1000.0m downstream
Ten percent of the power in a harmonic voltage/current wave is reflected from the interface between a coaxial cable of characteristic impedance 100 Omega and a second transmission line. Find the possible characteristic impedances of the second tr..
A bullet of mass 15 gram is fired with an initial speed of 300 m/s into a wooden particle that is initially at rest. calculate what is the mass of the particle
An amount of an ideal monatomic gas has an initial pressure of 210 kPa, an initial volume of 1.2x10-3 m3, at an initial temperature of 350 K. The gas now undergoes three processes:
Please show how you got the answer, thanks! At the top of a hill with slope angle 32o a snow sled is moving at 4 m/s. how fast will the sled be traveling at the bottom
A sled of mass m is given a kick on a frozenpond. The kick imparts to it an initial speed of 2.00m/s. find the distance the sled moves before it stops
A brass rod 25.0 cm long and 1 cm in diameter is welded end to end to a copper rod 25.0 cm long and 0.50 cm in diameter. What is the temperature at the brass / copper junction
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