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Determine the moment of inertia of a long bar of length "L" rotating about an perpendicular to the bar at (1 / 4) of its length. Give the result in terms of the length of the bar "L" and its mass "M" (ignore the thickness of the bar).
A 53-kilogram mountain climber, starting from rest, climbs a vertical distance of 768 meter. At the top, she is again at rest. Calculate her efficiency as a heat engine
Two blocks, each of mass m = 1.4 kg, are pushed along the horizontal surface of a table by a horizontal force P of magnitude 4.7 N, Find the frictional force acting on the upper block
An astronomer on a hypothetical planet orbiting the star Vega, 25 light-years from the Sun, wants to use the astrometric method to search for planets orbiting the Sun. What would be the angular diameter of the Sun's orbit as seen by this alien astr..
A transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor, What is the peak emf of the generator?
A certain fluid has a density of 1110 kg/m3 and is observed to rise to a height of 2.5 cm in a 1.0-mm-diameter tube. Calculate the surface tension of the fluid
A bird watcher meanders through the woods, walking 0.506 km due east, 0.736 km due south, Determine the magnitude (in kilometers) of the bird watcher's displacement
An electron is located on the x axis at x0 = -9.31 × 10-6 m. Discover the magnitude and direction of the electric field at x = 9.39 × 10-6 m on the x axis due to this electron. What is the magnitude in N/C? Is the direction positive x direction, nega..
A mass attached to a spring of spring constant 200 N/m undergoesSHM with amplitude 0.4m on a horizontal frictionless surface. what is the total energy of the system now
In San Francisco, a very simple technique is used to turn around a cable car when it reaches the end of its route. what is the magnitude of the net torque applied to the car
a golf ball is shot from a tee, elevated above 20.0m above the green,with the initial angle of 50.0 degrees above the horizontal. how much time will it take for the ball to travel from the tee
A solid concrete wall 4.0 m X 2.4 m X 30 cm thick has a thermal conductivity of 1.3 W/(mK) and separates a basement at 18C from the ground outside at 6C. How much heat flows during the walls in one hour?
A car drives off a horizontal embankment and lands 11m from the edge of the embankment in a field that is 3m lower than the embankment. With what speed was the car traveling
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