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A turn on a racetrack has a radius of curvature of 2000 ft and a bank angle theta. If cars travel at 140 mph through the turn find a) the minimum bank angle so the cars won't slip sideways during the turn. Neglect frictional forces b) Using the answer from pt a. find the maximum speed (mph) that the car can travel considering the coefficient of friction between the tires and the pavement to be 0.4
A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 44 dB by an observer 10 km away. What is the average power generated by the horn
A spherical water drop 2.6 ?m in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 3800 N/C. How many excess electrons does it have
A 15-gram coin is placed on the rim of a turntable rotating at a rate of 15 RPM. The radius of the turntable is .25-meters. determine The centripetal force acting on the coin
Maximum mass of exactly 1 metric ton?
How various g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80 m/s^2 of acceleration is 1 g.
In the equation, x is measured in meters and t in seconds. What is the maximum energy stored in the spring during an oscillation
Two trains approach each other on parallel tracks. how long (in seconds) will it be before they pass each other
A square loop of wire encloses area A1. What is the magnetic flux through loop A1
Calculate the angular velocity the flywheel must have to contain enough energy to take the bus from rest to a speed of 27.0 m/s, assuming 83.0% of the rotational kinetic energy can be transformed into translational energy
A gear train is to be designed to transmit power from shaft 1 to shaft 2 with the following condition: Shaft 1 (driven by an electric motor) rotates at 100 revs min%u20131. Determine the input power required at shaft 1
an electric toaster operating on 104.6 volts draw a current of 9.1 amps. what is the resistance of the toaster
Find the energy required to flip a magnetic dipole of 3 x 10^(-4) A*m^(2) in a magnetic field of 0.6T
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