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Speaking exams can be very daunting, but it's important to remember that these exams haven't been designed to trip you up in any way. The examiner will want you to do well too! It's also important not to ...
This is the radius of a sphere around a black hole, at the surface of which, for any object to be be free of its gravitational pull its escape velocity be equal to the speed of light.
This is the maximum velocity that an object can reach when falling through a medium (like air). Note that it occurs when the drag on the object equals the pull of gravity.
In order to find the unknown variables x and y we need to simplify these equations in the way that will make it possible for us to get rid of either x or y variable, and make it easier...
At first glance, this may seem quite complicated. However, it is simple once you make use of exponents. Let y=ln(x). This can be written as: ey = eCEAnswered by Charlie E. • Maths tutor14486 Views
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