More than 100 years ago the Wright brothers made their historic first flight in Kitty Hawk, N.C. Even after all these years, their creation still boggles the mind: How can something so heavy take to the air?
In summary, the conversation discusses an experiment conducted to find the coefficient of friction on rubber using a ramp and photo-gates to record the time and velocity of a car-like object. The experimenter is trying to determine the correct variables to use in their calculation and...
Figure 1.Piezoresponse Force Microscopy (PFM) basics: (a) an increasing electric field in parallel with the polarization of a piezoelectric sample will cause the sample to expand if the material has a positive electrostrictive coefficient, (b) a typical hysteresis loop describing the response and ...
aerodynamics laboratory has the biggest wind tunnel for studying car aerodynamics . since building the tunnel three decades ago, the company's engineers have reduced the coefficient of drag of their vehicles by around 25 percent. that kind of improvement boosts fuel economy by two to three miles ...
The simplest formula to find the wind load uses the wind speed to determine the magnitude of the force it exerts. The formula you need is: Here,ρis the density of air (which varies with elevation and temperature but can be taken as 1.2 kg/m3based on sea level and a temperature of 15...
Physics provides equations of motion (so called drag equations). we need to know: 1. size, shape and surface roughness of the body to get the corresponding drag coefficient 2. air density profile 3. wind profile IMC 2011: Željko Andreić: Dark flight calculatons - how accurate can they...
Solving for the flight time of a projectile is a problem often found in physics. You can use basic physics equations to determine the time any projectile, such as a baseball or rock, spends in the air. To solve for the flight time, you need to know the initial velocity, the angle of...
Tire manufacturers sometimes publish a coefficient of rolling friction (CRF) for their tires. You can use this number to calculate how much force it takes to push a tire down the road. The CRF has nothing to do with how much traction the tire has; it is used to calculate the amount of...
Tire manufacturers sometimes publish a coefficient of rolling friction (CRF) for their tires. You can use this number to calculate how much force it takes to push a tire down the road. The CRF has nothing to do with how much traction the tire has; it is used to calculate the amount of...
Here,\(\mu \)and\({\mu }_{{\rm{p}}d}\)represent the coefficient of the viscous drag experienced by the prey and the predator, respectively. In our model, for simplicity, we consider the dynamics in the overdamped limit. We study the prey-predator dynamics in dimensionless units. Posit...