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The Wall of Death in an amusement park is comprised of a vertical cylinder that can spin around the vertical axis. Riders stand against the wall of the spinning cylinder and the floor falls away leaving the riders held up by friction. The radius of the cylinder is 4.0 m and the coefficient of static friction among the rider and the wall is 0.34. Discover the tangential velocity of the spinning wall necessary therefore that the riders do not slip down the wall.
Estimate the shear stress if this force is ex- erted on a 0.412 cm -thick pine board that is 13.7 cm wide
A chain on a table is stretched out in a straight line perpendicular to the table's edge with one-fourth of the length L hanging over the side. Determine how much work is required to pull the hanging section
A circular loop of wire of radius 12.5 cm is placed in a magnetic field directed perpendicular to the plane of the loop, calculate the magnitude of the emf induced in the loop
When an AC source is connected across a 11.5-? resistor, the rms current in the resistor is 8.20 A.
How much heat would flow by the glass in 1.00 h if there is a temperature difference of 3^circ {rm C} between the inner and outer surfaces.
90 grams of water at 80°C are mixed with an equal amount of water at 20°C in a completely insulated container. The final temperature of the water is 50°C. How much heat is lost by the hot water
q1. a force of 20 n was used to push a box along the floor a distance of 6 m. how much work was done?q2. it
The electron and proton of a hydrogen atom are separated by a distance of 5.3*10^-11m. Find the magnitudes of the electric force and the gravitational force that each particle exerts on the other...Mass of electron is 9.11*10^-31 kg and 1.67*10^-2..
A variable-length air column is placed just below a vibrating wirethat is fixed at both ends. The length of the air column open at one end is graduallyincreased from zero until the first position of resonance isobserved at L = 34.0 cm.
A stone is thrown horizontally at a speed of 5.0 m/s from the top of a cliff 78.4 m high. How far from the base of the cliff does the stone hit the ground? How long does it take the stone to reach the bottom of the cliff?
A point charge of +7.6? C is located 0.27 m from a second point charge of -4.9? C. What is the absolute magnitude of the force on each charge
A terrestrial telescope uses an objective and eyepiece with focal lengths of 42cm and 6.0cm, respectively. find the magnification of the telescope for an object at infinity
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