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Question: The top surface of a light-aircraft wing traveling at an air speed of 55 m/s is assumed to be equivalent to a flat plate of length 2 m. Laminar-turbulent transition is known to occur at a distance of 0.75 m from the leading edge. Given that the kinematic viscosity of air is 15 × 10-6 m2/s, estimate the coefficient of skin-friction drag.
a 760 kg light weight helicopter ascends from the ground with an acceleration of 2.5m/s^2. what is the work done by the lifting force
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
An electron is accelerated from rest by a potential difference of 440 V. Calculate the radius of its path in the magnetic field
If the mass of the electron is 9.109 × 10–31 kg, illustrate what is the magnitude of its relativistic momentum?
A day on a distant planet observed orbiting a nearby star is 31.7 hours. Also, a year on the planet lasts 79.5 Earth days.* Calculate the average angular speed of the planet
Ultrasound probes can resolve structural details with sizes approximately equal to the wavelength of an ultrasound waves themselves. What is a size of the smallest feature observable in human tissue while examined with 25 MHz ultrasound? The speed of..
question the alpha-particle bombardment of fluorine-19 generates sodium-22 and neutrons. write the nuclear equation
a 10 N force is applied to a wheel with a radius of 3 cmcausing an acceleration of 12 rad/s2. what is the rotational of inertia of the wheel
question the equation for the spherical wave front of a light pulse that begins at the origin at time t0 is
In diving to a depth of 331 m, an elephant seal also moves 337 m due east of his starting point. What is the magnitude of the seal's displacement
What is the minimum uncertainly in the speed of an electron that is known to be somewhere between 0.065 nm and 0.30 nm from a proton.
If the fish starts from a distance 1.09 m from the base of the ledge over which the waterfall flows, Can the fish make this jump
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