In the figure, the magnitude of vector A⃗ is 18.0 units, and the magnitude of vector B⃗ is 12.0 units. What vector C⃗ must be added to the vectors A⃗ and B⃗ so that the resultant of these three vectors points in the − x-direction and has a magnitude of 7.50 units? a) Use vector components to find your answer, and express vector C⃗ by giving its magnitude.
Enter your answer numerically.

Why do electron microscopes have higher resolving power than light microscopes?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s