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Consider three force vectors F~ 1 with magnitude 52 N and direction 125? , F~ 2 with magnitude 92 N and direction 193? , and F~ 3 with magnitude 71 N and direction 83? . All direction angles θ are measured from the positive x axis: counter-clockwise for θ > 0 and clockwise for θ < 0. What is the magnitude of the resultant vector kF~ k, where F~ = F~ 1 + F~ 2 + F~ 3 ? Answer in units of N.
A grating has exactly 7800 lines uniformly spaced over 2.63 cm, What is the expected angle for the third-order maximum of the green line
a motorcycle can accelerate at a rate of 5.2 ms2. the rider plans to take the bike on a loop de loop that has a radius
A block-spring system oscillates with an amplitude of 3.65 cm. The spring constant is 250 N/m and the mass of the block is 0.200 kg. Determine the mechanical energy of the system
A bicycle has wheels with a diameter of 0.570 m. Itaccelerates uniformly and the rate of rotation of its wheelsincreases from 201 rpm to 295 rpm in a time of 27.3 s. Find the linear acceleration of the bicycle.
An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. Find the size and the nature of the image
State the continuity equation and discuss its physical interpretation. Distinguish between the physical interpretations of the divergence and the curl of a vec- tor field by means of examples.
An ideal spring of negligible mass is 13.00 long when nothing is attached to it. When you hang a 3.00- weight from it, you measure its length to be 14.50 .If you wanted to store 10.0 of potential energy in this spring, what would be its total leng..
A solid cylinder of mass 10kg and radius 20cm is free to rotate around an axis parallel to the axis of the cylinder. What is the kinetic energy of the cylinder
A frictionless pulley has the shape of a uniform solid disk of mass 6 and radius 25 . A 1.90 stone is attached to a very light wire that is wrapped around the rim of the pulley.
the warm source of a carnot cycle has a temperature of 100 ?c while the cold source consists of melting ice.when the
an airtight box has a removable lid of area 1.34e-2 m2 and negligible weight. the box is taken up a mountain where the
A helicopter lifts a 75 kilogram astronaut 12 meter vertically from the ocean by means of a cable. The acceleration of the astronaut is g/13. Find how much work is done on the astronaut by the force from the helicopter
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