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A pilot knows a 7.00 km distance lies between two landmarks A and B on the level ground below. When he is over landmark A, he determines that landmark B lies 20.0 degrees below the horizontal.
a. What is a scalar? Give an example of a scalar.
b. What is a vector? Give an example of a vector.
c. Make a sketch, showing the plane and landmarks A and B. Indicate all relevant distances and angles.
d. Give the Cartesian coordinates of the landmarks using A as a reference.
e. What is the airplane's altitude?
The mousetrap car has a mass of 100 grams and starts travelling at the speed of 1.80 m/s and after 5seconds get the rested? What force did the motor exert.
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A 15.1 mass fastened to the end of a steel wire with an unstretched length of 0.650 is whirled in a vertical circle with angular velocity 2.00 at the bottom of the circle. The cross-sectional area of the wire is 1.20×10?2 . Calculate the elongatio..
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A ballplayer catches a ball 2.75 seconds after throwing it vertically upward. With what speed did he throw it? Calculate the final & resultant velocity and acceleration.
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