Top answers

what would be the mass required to keep an object with a mass of 250kg orbiting at a constant distance of 100km with a linear velocity of 100m/s?

the linear speed of an orbiting body is given by the equation sqrt(GM/2r) where M is the mass of the attracting body, G is the gravitational constant and r is the distance between the two bodies' centres of ...
MA
Answered by Michael A. • Physics tutor
2402 Views

What is the Young's modulus of a material?

The Young's modulus is a measure of the stiffness of the material - higher the young's modulus, higher the stiffness. It is calculated by dividing stress by strain over the elastic deformation region and is ...
MS
Answered by Manika S. • Physics tutor
2667 Views

My experience with the UKCAT?

Without a doubt, the timing was the most challenging aspect. To start with I didn’t do questions timed, just to get a feel on how to approach questions but fairly soon I started timing myself, being very str...
CD
Answered by Chaitya D. • UCAT tutor
2856 Views

Discuss the view that overuse of common access resources is best addressed by the government

Common access resources are resources which are not owned by anyone, do not have a price and are available for anyone to use without payment. They are rivalrous but non-excludable. Since they are free and no...
EA
Answered by Edon A. • Economics tutor
31606 Views

What should I aim to do in my free composition to guarantee high marks?

At GCSE level, your examiners are not looking for a particularly complex piece of music. They are simply looking for a well-executed, well written-out simple composition, and the easiest way to accomplish th...
JB
Answered by Jacob B. • Music tutor
14121 Views