Top answers

How can an object in circular motion be accelerating when it's at the same speed?

In Physics, there are two types of numbers: scalars and vectors. Scalars are just a normal number, as we are used to. Vectors also have a direction associated with them. Thus, variables like temperature and ...
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Answered by Toby T. • Physics tutor
3178 Views

What are the different ways that energy can be transferred?

There are three methods of energy transfer that we need to learn: conduction, convection, and radiation. 1. Conduction: Heat is thermal energy, and in solids it can be transferred by conduction. Heat is pass...
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Answered by Lois M. • Physics tutor
277554 Views

What is teminal velocity?

A freely falling object in air (or any other fluid for that matter) experiences two forces: the gravitational force and the force due to air resistance (or drag force). While the gravitational force depends ...
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Answered by Rahul S. • Physics tutor
4346 Views

How fast are geostationary satellites moving?

From a Newtonian perspective, the equation for the speed of a satellite in circular orbit around the Earth at a radius r can be derived by equating centripetal acceleration to the acceleration due to gravity...
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Answered by Angus L. • Physics tutor
4168 Views

How are X-Rays produced?

X-Rays are a form of electromagnetic radiation similar to gamma radiation except X-Rays are produced when an electron is slowed down from a high velocity and gamma waves are produced from radioactive materia...
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Answered by Lewis S. • Physics tutor
22322 Views