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In a wind tunnel the pressure on the top surface of a modelairplane wing is 8.6 x 104 N/m2 and thepressure on the bottom surface is 8.8 x 104N/m2. If the total area of the top and bottom surfacesof each wing is 1.8 m2 ,what is the total lift on the model airplane?
the phase angle of an rlc series circuit with a capacitive reactance of 40 omega a resistor of 100 omega and a certain
A flashlight uses batteries that add up to 4.5 V and has a power output of 0.56 W. How much current is drawn from the batteries
When an ion accelerates through a potential difference of 2240V, What is the charge on the ion
Radium decomposes radioactively to form radon (atomic number 86, which is also the number of protons in the nucleus) by emitting an alpha-particle from its nucleus, What is the acceleration of the alpha-particle at this distance
A 70 m3 incompressible box is completely submerged in a fluid. What volume of fluid is displaced by the box if the fluid is air? The density of air is 1.2 kg/m3
q1. after being accelerated to a speed of 1.7times10 5 ms the particle enters a uniform magnetic field of strength 1.00
The electric field at the surface of a charged, solid, coppersphere with radius 0.210 m is3380 N/C directed toward the center ofthe sphere. What is the potential at the center of the sphere, ifwe take the potential to be zero infinitely far from thes..
Suppose a star with radius 8.36 108 m has a peak wavelength of 692 nm in the spectrum of its emitted radiation. What is the surface temperature of the star
problem1.the mass attenuation coefficient for concrete density r 2.35 gcm3 for 600 kev photons is 0.08 cm2g.a what is
what is the angular momentum of a figure skater spinning at 4.5 revs with arms in close to her body assuming her to be
A Hall probe uses the Hall effect to measure the size of magnetic fields - it does this by measuring the potential difference across the electric field created by the displacement of charge
You are given a force versus distance graph and the initial velocity at the origin. How do you calculate velocity at any point in time on the graph
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