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the supersonic aircraft concorde has a length of 61.5m when sitting on th ground on a typical day when the temperature is 15.0 degrees C. The concorde is primarily made of aluminum. In flight at twice the speed of sound, friction with the air warms the concorde skin and causes the aircraft to lengthen by 21.0cm. what is the temperature of the concordes skin in flight?
an auditorium measures 40.0m X20.0 m X 12.0 m. The density of air is 1.20 kg/m^3. find the weight of air in the room
Dan is gliding on his skateboard at 4. He suddenly jumps backward off the skateboard, kicking skateboard forward at 8.00 (as measured by an observer on the ground). Dan's mass is 60 and skateboard's mass is 5.00 .How fast is Dan going as his fee..
Assume that you need to get a heavy couch into the bed of a pickup truck. You know the bed of the truck is at the height of 1.00 and you require a ramp that makes an angle of 40 with the ground if you are to be able to push the couch.
A point charge with charge q1 is held stationary at the origin. A second point charge q2 with charge moves from the point (x1, 0) to the point (x2,y2 ). How much work is done by the electrostatic force on the moving point charge? Express your answ..
A uniform plank of length 4.30 m and weight 226 N rests horizontally on two supports, with 1.10 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 437 N walk on overhanging part of the plank be..
Two 1.6V. batteries are connected together in series to a bulb whose resistance is 60 ohms. How many electrons leave each battery per minute
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown, What is the y component of the ball's velocity
Two points in a rectangular coordinate system have the coordinates (4.7, 2.5) and (-2.5, 4.7), Determine the distance between these points
A diesel engine does not use spark plugs to ignite the fuel and air in the cylinders. at the place of, the temperature required to ignite the fuel occurs because the pistons compress the air in the cylinders.
How various lines per centimeter does a grating have if the third-order occurs at a 23.0 degree angle for 630-nm light.
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.19 m2 and whose thickness is 9 mm. what is the percentage lost by the window
A machine in the factory needs 38 V to operate. The power in the factory is different from that, what is the voltage of the electrical power system in the factory
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