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You want to design an oval racetrack such that 3200 lb racecars can round the turns of radius 1000 ft at 104 mi/h without the aid of friction. You estimate that when elements like downforce and grip in the tires are considered the cars will round the turns at a maximum of 175 mi/h. Find the banking angle necessary for the racecars to navigate these turns at 104 mi/h and without the aid of friction or other forces. This banking and radius are very close to the actual turn data at Daytona International Speedway where 3200 lb stock cars travel around the turns at about 175 mi/h. What additional radial force is necessary to hold the race car on the track at 175 mi/h?
A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 193-kg laser sensor which measures the thickness of the ice, find the tension in the cable towing the sensor
When a person inhales, air moves down the bronchus (windpipe) at 17 cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the pressure drop in the constriction.
A 700 kg piston is initially held in place by a removable latch above a vertical cylinder. The cylinder has an area of 0.1 m^2; the volume of the gas within the cylinder is initially 0.1 m^3 at a pressure of 10 bar.
A hundred turn of insulated copper wire are wrapped around an iron cylinder of cross-sectional area 1.0x10^-3 m^2 and are connected to a resistor. The total resistance in the circuit is 10 ?. If the longitudinal magnetic field in the iron changes fro..
A 1600-kg car starts from rest to reach 60.0 miles/h in 6.50 s. What is the engine's power output, How much work is done by the engine during the acceleration
A 45 dB sound wave strikes an eardrum whose area is 4.1 × 10-5 m2. How much energy is received by the eardrum per second
Two resistors, 50.0 ? and 52.0 ?, are connected in parallel. The current through the second resistor is 2.10 A. What is the total power supplied to the two resistors
A car is going with a constant speed of 15 m/s (about 34 mph) in a school-crossing corner, where the speed limit is 10 m/s (about 22 mph). What is the speed of the police car at that point
Which of the following devices uses total internal reflection function?
A 214.8 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. What is the velocity (speed) of the satellite
find the temperature of a cavity having an irradiance at 200 nm that is 3.82 times the irradiance at 400 nm.2. a 2.30
A swimming duck paddles the water with its feet once every 1.6s, producing surface waves with this period. How far apart are the crests behind the duck
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