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An airplane, flying horizontally at an altitude of 1.83 km at a speed of 346 m/s, releases a package.
a) Neglecting air resistance, find the speed of the package just before it reaches the ground.
A sustained force of 52N moves a model airplane 22m along its runway to provide the required speed for takeoff
a concave mirror has a focal length of 15.0 cm. An object is placed 18.5 cm in front of the mirror. How tall is the object placed in front of the mirror
A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. Find the magnitude of the average force exerted on the water by the blade
There are two identical, positively charged conducting spheres fixed in space, find the initial charge on each sphere, q1 and q2 if initially q1
(a)For a satellite to be in a circular orbit 660 km above the surface of the earth, what orbital speed must it be given (b)What is the period of the orbit (in hours)
How much greater is an angular momentum of the Earth orbiting about the sun than the moon orbiting about the Earth? (Set up a ratio of angular momenta using data on inside back cover. The period of the moon is about 27.3 days.)
Five-gram samples of copper and aluminum are at room temperature
What is the value of the composite constant (Gmer2e), to be multiplied by the mass of the object mo in the equation above
The activation energy for vacancies in Cu is w.28 eV. Find the fractional number of vacancies at the melting temperature. Estimate the contribution of vacancies to the thermal expansion at the melting temperature.
What diameter has the tip of the minute hand with 100mil/hr tangential speed? Illustrate what diameter has the tip of the hour hand with 100mil/hr speed?
A fire hose ejects a stream of water at an angle of 35.8 ° above the horizontal. how far from a building should the fire hose be located to hit the highest possible fire
A mass spectrometer is used to examine the isotopes of uranium. What is the distance between the impact points
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