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A 247 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.880, and the log has an acceleration of 0.900 m/s2. Find the tension in the rope.
two lenses with focal lengths f15cm and f210cm are located 5cm apart. if an object 2.50 high is located 15.0 cm in
A block of mass m1 = 1.75 kg and a block of mass m2 = 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. These blocks are allowed to move on a fixed block-wedge of ..
The pitch of the sound from a race car engine drops the musical interval of a tenth when it passes the spectators. How fast is the race car moving
He-Ne lasers are often used in physics demonstrations. They produce light of wavelength 633nm, What is the average energy density in the laser beam
A proton exeriences a magnetic field B= 1.9 X 10^-4i^ T and electric field E = 3.2 j^ N/C, what is the net force on the proton
Transcranial magnetic stimulation (TMS) is a noninvasive technique used to stimulate regions of the human brain. Determine the induced emf within a circle of tissue of radius 1.9 mm and that is perpendicular to the direction of the field
The HR diagram is a powerful tool to analyze evolution and characteristics of stars. The HR diagram is used to plot the temperature/luminosity evolution of stars from the interstellar medium to the main sequence. As a star evolves along this path ..
A typical GPS (Global Positioning System) satellite orbits at an altitude of 4.40 107 m. Find the orbital period of such a satellite
Illustrate what is the number of shares to be used in computing basic earnings per share and diluted earnings per share, respectively, for the year ended December 31, 2007?
Please helps me out for determining the following if the capacitor in the circuit below is initially uncharged.
monochromatic light falls on a slit that is 3.10 10-3 mm wide. if the angle between the first dark fringes on either
A small ball is attached to one end of a spring that has an unstrained length of 0.152 m. By how much would the spring stretch if it were attached to the ceiling and the ball allowed to hang straight down, motionless
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