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A woman measures the angle of elevation of a mountain top as 12 degrees. After walking one km closer to the mountain on level ground, she finds the angle to be 14 degrees. Select variable names for the two pictures. Using the tangent and the two pictures function, write two trigonometric equations relating the two selected variables. Discover the height y of the mountain by first solving one equation for X and substituting the result into the other equation.
At the end of a wild roller-coaster ride, the train of cars must come to a graceful stop at the loading station. What is the magnitude of the acceleration of the train
A solid ball of mass 0.25 kg and radius 0.1 m rolls without slipping 4 m down an incline that makes an angle of 25 degrees with a horizontal. Find the angular acceleration of the ball
An electric device draws 6.50 A at 240 V (a) if the voltage drops with 15% what will be the current assuming nothing else changing (b)if the resistance of device are reduced by 15 % what current would be drawn at 240 V
A pulley wheel that is 22.0 cm indiameter has a 5.2 m long cord wrappedaround its periphery. How long does the unwinding take
a laser having an internal loss per round-trip of 0.015 when pumped at three times threshold has an output power of 4w.
a 650kg elevator starts from rest. it moves upward for 3.00s withconstant acceleration until it reaches its cruising speed, 1.73m/s, what is the average power of the elevator motor during thisinterval
an 1820 kg car passes over a bump in a road that follows the arc of a circle of radius 41.9 m.a what force does the
q1.a race car starts from rest on a circular track of radius 453 m. the cars speed increases at the constant rate of
Did you firm earn profit or incurred loss at the end and make a small comment on your financial position at the end.
the drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel
A 0.150 T magnetic field B crosses the xyplane perpendicular to the x axis and at an angle of45.0° to the y axis. A square surfacewith sides of length 7.00 m lies mainly in the xyplane, but a 1.50 m section of it at one end is bent 90°in the negat..
Scientists have found evidence that Mars may once have had an ocean 1.00km deep. What would be the gauge pressure at the bottom of such an ocean
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