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Carefully examine the temperature-dependent speed of sound equation (331 + 0.6*T ; where T is temp in Celsius). Can this equation be modeled with a linear equation? If so, what are the independent and dependent variables? What is the significance of the y-intercept? What is the slope, and what are the units of the slope? Sketch a graphical representation of the temperature dependence of the speed of sound.
A geosynchronous orbit is one in which the satellite orbits above the equator, and has an orbital period of 24 hours, so that it is always above the same point on the spinning earth. Calculate the altitude ofsuch a satellite.
A pilot flies her route in two straight-line segments. The displacement vector A for the first segment has a magnitude of 242 km, find the directional angle
A fan blade rotates with angular velocity given by ?z(t)= ? ? ? t2, where ? = 4.60rad/s and? = 0.795rad/s3, Calculate the angular acceleration as a function of time
A 76.2-kg skier rides a 2520-m-long lift to the top of a mountain. find the change in the skier's gravitational potential energy
Two waves of the same frequency have amplitudes 0.961 and 2.16. What is the resultant amplitude
An aluminum tray used for making ice cubes is filled with water and placed in a freezer at 20.0 C. The emissivity of the aluminum is close to zero, but the emissivity of water or ice is 0.950. The exposed top surface area of each ice cube is 20.0..
A 7.05 10-3-kg plastic ball with a charge -0.156 µC is suspended from a ceiling with an insulating thread such that the ball stays between the plates of the capacitor. What is the magnitude of the electric field between the plates
A point charge q1=4nC is placed at the origin, and a second point charge q2= -3nC is placed on the x-axis at x= 20cm. A third point charge q3=2 nC is to be placed on the x-axis between q1 and q2.
A uniform rod of mass 1.5kg and Length=0.18m rotates clockwise on the plane of your paper at an initial rate of 40rev/s about its central axis. Determine the initial angular momentum of the rod
what is the maximum mass it can support in freshwater. find the maximum height of the projectile is equal to its horizontal range.
the dentists chair uses a hydraulic press in which the radius of the smaller piston is 3 cm. the dentist wishes to
An electron is then fired directly toward the center of the shell, from point P at distance r from the center of the shell (r >> R). What initial speed v0 is needed for the electron to just reach the shell before reversing direction.
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