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1. The drag force on a cylinder is studied in a wind tunnel. If wall effects are negligible, relate the drag force to the wind's speed, density and kinematic viscosity, and the cylinder's diameter and length. 2. The distance of the flight of a golf ball is assumed to depend on the initial velocity of the ball, the angle of the ball from the club, the viscosity and density of the air, the number of dimples on the ball and its diameter, and gravity. Write an expression for the flight distance. How would the temperature of the air influence the flight distance?
A physics book slides off a horizontal tabletop with a speed of 2.70 . It strikes the floor in 0.350. Find the direction of book's velocity, just before the book reaches the floor
A 7.0 kg block hangs from a spring, extending it 22 cm from its unstretched position. what is its period of oscillation
A 200 g ball of putty falls vertically into a 2.50 kg cart that is rolling freely at 2.00 m/s on a horizontal surface. What is the final speed of the cart
A circular loop of wire of radius 18 cm moves at a speed of 6.6 m/s in the direction of a 0.13 T uniform magnetic field, What is the emf induced in the loop
two objects are connected by a light string that passes over a frictionless pully, find the magnitude of the acceleration of the suspended block as it falls
with an initial concentration of 25 ppm and an equilibrium concentration of 300 ppm if the time constant for the room
A cameraman on a pickup truck is traveling westward at 24 km/h while he videotapes a cheetah that is moving westward 25 km/h faster than the truck. Abruptly, the cheetah stops, turns, and then run at 42 km/h eastward, as gauged by a suddenly nervous ..
A physical pendulum is made by drilling a hole through a uniform wooden disk of radius R a distance (alpha)*R from the disk's center. What must alpha be to miniumze the disk's period of oscillation
In the first 3.1 seconds of a bobsled run, the 45 kg sled is pushed until it reaches a speed of 1.14 m/s. What constant force is exerted by the bobsled team
A runner moving at a constant speed of 11.7 m/s rounds a curve of radius 4.10 m. calculate the acceleration of the runner. (State the magnitude of this acceleration.)
A sports car tire is 64 centimeter in diameter. The car is traveling at a speed of 30 m/s. Find the speed of a point at the bottom edge of the tire
Standing waves on a string are generated by oscillations having amplitude 0.005 m, angular frequency 942 rad/s, and wave number 0.750p rad/m. What is the equation of the standing wave?
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