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Q1. A curve of radius 40 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely create the curve?
Q2. An underwater diver sees the sun 48° above horizontal. How high is the sun above the horizon to a fisherman in a boat above the diver?
A heat engine is composed of of a monatomic ideal gas which runs in the following cycle, What is the efficiency of this heat engine and What is the temperature at point B
An athlete crosses a 29 m wide river by swimming perpendicular to the water current at a speed of 0.6 m/s relative to the water. How fast is the water flowing relative to the ground
In a series LRC AC circuit, the resistance is 19 Ohm, the inductance is 21 mH, and the capacitance is 14 micro Farads. Calculate the max current in the circuit
A firm wants to determine the amount of frictional torque in their current line of grindstones, find the frictional torque exerted on the grindstone
A rotating cylinder about 12.00 km in length and 8.00 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it would experience the same acceleration because of gravity on Earth.
A wire 69.2 cm long carries a 0.740 A current in the positive direction of an x axis through a magnetic field with an x component of zero
What are the velocities of the two people after the snowball is exchanged. What is the greatest kinetic energy of the electrons removed from the cathode by this light.
A child is riding a merry-go-round which completes a revolution every 8.36 s. The child is standing 4.65 m from the center of the merry-go-round. Evalute the magnitude of the centripetal acceleration of the child?
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
A football is kicked from ground level and lands 57.0 m downfield. What max heigh above the ground does the ball reach
A 378 N, uniform, 1.56 m bar is suspended horizontally by two vertical cables at each end. Cable A can support a maximum tension of 502.0 N without breaking, and cable B can support up to 397.0N. You want to place a small weight on this bar. What is ..
A 58.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.700 and 0.480, respectively. What horizontal pushing force is required to just start the crate moving
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