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A horizontal aluminum rod 4.8 cm in diameter projects 5.6 cm from a wall. A 1200 kg object is suspended from the end of the rod. The shear modulus of aluminum is 3.0 ? 1010 N/m2. Neglect the rod's mass.
(a) Find the shear stress on the rod. (N/m2)
(b) Find the vertical deflection of the end of the rod. (m)
A hydraulic lift consists of two pistons that connect to each other by an incompressible fluid. If one piston has an area of 0.49 m^2 and the other an area of 6.2m^2, how big a mass can be raised by a force of 220N exerted on the smaller piston.
What is momentum of a truck speeding down the highway at a given instant? Discuss how the momentum is changed if the truck loses some of its cargo while maintaining the same velocity.
Two particles are fixed on x-axis. Particle 1 of charge q1 = -2×10^-7 C at x = 20 cm and particle 2 of charge q2 = +8×10^-7 C at x = 70 cm. At what x coordinate on the axis is net electric field produced by the particles equal to zero.
An underwater diver sees the sun 58{rm ^circ} above horizontal. How high is the sun above the horizon to a fisherman in the boat above the diver.
A stunt man whose mass is 70kg swings from the end of a 4.50m long rope along the arc of a vertical circle. Assume that he starts from rest when the rope is horizontal, find the tensions in the rope that are required to make him follow his circula..
Makeshift child's swing: Child's weight, magnitude of force, maximum angle, A makeshift swing is constructed by making a loop in one end of a rope and tying the other end to a tree limb.
A charge of +2.00 x 10^-9 C is placed at x = 0.0 m. A second charge of +4.00 x 10^-9 C is placed at x = 1.5 m.
Assume that the temperature of the bullet doesn't change appreciably, how much ice is melted as a result of the collision.
what is the final position of the man. What is the magnitude of the electric field (in N/C) at the point (-2.0 m, 3.0 m).
In photo like the Hubble Deep Field, we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives.
A proton has a mass of 1.67 x 10^-27 kg and a charge of 1.60 x 10^-19 C. What is the gravitational force on a single proton at Earth's surface.
which the tortoise wins in a photo finish? suppose that, when moving, both animals move steadily at their respective maximum speeds.
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