A one quarter scale model aircraft is tested at high incidence in a compressed air wind tunnel where the density is 10 times standard air density. It is found that the wings shed vortices at a frequency of 25 Hz. For conditions of dynamic similarity, what will be the equivalent vortex shedding frequency for the full-scale aircraft? You may assume that the air dynamic viscosity remains constant in model and full-scale conditions.

Q: 1. When an object is in free fall near the surface of the Earth, the only force acting on it is the…

A:

Q: a crane lifts a 1000 lb science desk to a height of 20 ft using a chain that weighs 2 lb/ft. If the…

A:

Q: The dimensions of a closed rectangular box are measured as 90 centimeters, 80 centimeters, and 60…

A: Given: The dimensions of a closed rectangular box are measured as 90 centimeters, 80 centimeters and…

Q: Prove that moments are independent of change of origin but not of scale.

A:

Q: Use a linear approximation to estimate V65.

A: 653

Q: mplitude of the oscillatio

A: Given that a tank contains 220 gallons of water and 50 oz of salt. Water containing a salt…

Q: A cannonball is launched from an initial height of 10 meters with an initial launch angle of 21…

A: Let's break down the problem step by step and formulate the system of differential equations that…

Q: 1 A tank contains 360 gallons of water and 40 oz of salt. Water containing a salt concentration of…

A: Given that a tank contains  gallons of water and  oz of salt.Water containing a salt of…

Q: A 500-gallon tank contains a 0.5 lb/gal salt solution with a volume of 200 gal. Then the tank is fed…

A:

Q: 4. Symbiotic Relationship: When two species, such as the rhinoceros and birds, coexist in a…

A:

Q: Because of the gravitational attractions of the moon and the sun on the Earth, water in seas and…

A:

Q: At a certain moment, an object in linear motion has velocity 100 m/s. Estimate the distance traveled…

A: Given that: At a certain moment, an object in linear motion has velocity 100 m/s To estimate the…

Q: Jack and Sally are standing 10 meters from the bottom of a 100-meter ridge. Suddenly, a large stone…

A:

Q: The displacement s of a particle moving in a straight line is given by s(t) = 3t +4 where s(t) is…

A:

Q: A large block of ice is in the shape of a cube. As it melts, each edge of the cube drops at a rate…

A:

Q: A point on the parabola y=ax²+bx+c, where a = 5, b = 5, and c = 2, is moving with uniform horizontal…

A: The point moves on a parabolic path.

Q: What is the displacement of an object that travels at a constant velocity of 10 mi/hr for a half…

A: Consider the given information 10mihr for a half hour and  20mihr for a next half hour and 30mihr…

Q: (c) What conclusions can you draw about the behavior of the two dif- ferent epidemics?

A: A condition brought on by the human immunodeficiency virus (HIV) known as acquired immunodeficiency…