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Q1. Vector A points in the negative y direction and has a magnitude of 3 units. Vector B has three times the magnitude and points in the positive x direction. Find out the direction and magnitude of the following vectors.
A-B (magnitude and direction counter clockwise from the +x axis)
B-A (magnitude and direction counter clockwise from the +x axis)
Q2. An airplane is flying horizontally with the speed of 1300km/h when an engine falls off. Neglecting air resistance, assume it takes 25 s for the engine to hit the ground.
a) What is the altitude of plane?
b) What is the horizontal distance airplane engine falls?
How numerous years would it take a thermally insulated one-million-kilogram chuck of granite to undergo a 1000k boost in temperature?
The length of the mercury column is 4.0cm in pure melting ice and 28.0 cm in the steam. Compute the temperature for a length of 22.0.
The wind blows with a force of 425N north on a sail boat, while the water exerts a force of 325N west on the sailboat. Find out the magnitude and direction of the net external force on the sailboat.
One displacement vector A has magnitude of 2.78 km and point due north. Another displacement vector B has a magnitude of 7.40 km and also points due north. Provide diagrams and calculate the magnitude and direction of A+B, B-A, A-B.
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