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A uniform steel beam has a mass of 2070 kg. On it is resting half of an identical beam, as shown in Fig. 9-44. What are the vertical support forces?
left end?
right end?
The electric field everywhere on the surface of a thin, spherical shell of radius 0.785 m is of magnitude 850 N/C and points radially toward the center of the sphere. (a) What is the net charge within the sphere's surface? Please show work.
A cylinder is rolling along the ground without the slipping at 7m/s. It comes to a hill and begins going up. Assume no losses to friction, how high vertically would it go before it stops?
A damping force acts on the egg, and the amplitude of the motion decreases to 0.101 in a time of 5.00 compute the magnitude of the damping constant b.
A 1.60m cylindrical rod of diameter 0.450cm is connected to a power supply that maintains a constant potential difference of 15.0V across its ends, Find the resistivity and for the material of the rod at 20 ?C
A chair of weight 135 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 38 directed at an angle of 42 below the horizontal and the chair slides along the floor.
suppose that they have same internal energy, which will have a higher temperature: a metal knife in thermal equilibrim with a hot griddle or a 1kg block of ice at -25C or seven 12g ice cubes at -25C.
1.9*10^20photons per second are emitted by a 70W lightbulb, the wavelength is 550nm. How many photons per second are entering the pupil
A whale swims due east for a distance of 5.1 km, turns around and goes due west for 6.1 km, What is the total distance traveled by the whale
In a mass spectrometer the charged particles have to reach a common specific speed. To do so, they are accelerated with an electric field, determine the direction of the magnetic force
Runner A is initially 8.0 mi west of a flagpole and is running with a constant velocity of 6.0 mi/h due east. Runner B is initially 6.0 mi east of the flagpole and is running with a constant velocity of 8.0 mi/h due west. How far are the runners f..
Find the moment of inertia of the plate for an axis that lies in the plane of the plate, passes through the center of the plate, and is perpendicular to the axis in part A
Two small frogs simultaneously leap straight up from a lily pad. Frog A leaps with an initial velocity of 0.726 m/s, while frog B leaps with an initial velocity of 1.62 m/s
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