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Find the minimum aperture diameter of a camera that can resolve detail on the ground the size of a person (1.5m ) from an SR-71 Blackbird airplane flying at an altitude of 26km . (Assume light with a wavelength of 470nm .)
an exoplanet of mass 5 times the mass of jupiter and 3 jupiter radii orbits a star identical to the sun at a distance
A 9 kg mass slides to the right on a surface having a coefficient of friction 0.37 as shown in the figure. The mass has a speed of 5 m/s when contact is made with a spring (of con- stant 107 N/m)
Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.5 cm in diameter and carries a current of 48 A. calculate the potential difference between its feet
an explorer is caught in a whiteout in which the snowfall is so thick that the ground cannot be distinguished from the
Each year, there is a foot race to the top of the Empire State Building. The vertical distance traveled (using the stairs!) is about 440 meter. find what was his average power output during the race
How numerous atoms does each hand contain
Verify Snell's Lam of refraction by tracing and measuring the direction of refracted light rays through a change in medium. If we replaced the water dish with a solid glass disk of the same shape, explain how your data would be different
Find the magnitude of book's velocity, just before the book reaches the floor. Find the direction of book's velocity
An AC source operating at 60 Hz with a maximum voltage of169 V is connected in series with aresistor (R = 1.4 k) and acapacitor (C = 2.5 µF). What is the maximum value of the current in the circuit? What are the maximum values of the potential diff..
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 260 J/s. The energy is transferred a distance of 1.8 × 10-3 m through a body whose surface area is 1.3 m2. Assuming that the thermal conductivity..
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.225 T, find the radius of the circular path
A small rubber ball is launched by a compressed-air cannon from ground level with an initial speed of 18.9 m/s directly upward. How long does it take to reach the maximum height
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