Mechanics | Relativity Answers

By Donald Marolf's Notes what is the gravitation field

By Donald Marolf's Notes what is the importance of the field

By Donald Marolf notes how to drowing the proper time and proper distance

there is a rod of mass 50kg with 2 identical masses attached to it at 20cm and 40cm from each end respectively. length of rod is 4m then what will be net reactions of masses on rod such that the system will be in equilibrium??

By Donald Marolf notes how to drowing the proper time and proper distance explain in some detail

0.500 kg ball traveling at 1.00 m/s to the right hits a second ball of equal mass that is initially at rest. After the perfectly elastic collision, the second ball travels at 0.543 m/s at a 57.2o angle upward from the point of contact.
Draw a before and after diagram of this collision.
Write the momentum equations in both the x and y direction.
Using the information from the previous problem, determine the speed and angle of the first ball.

What is the average velocity of a dog that takes 5.0s to run forward 16m

Please make the m.cqs of Donald Marolf's Notes chpter no 4th and 7th please

By Donald Marolf's Notes what is the local frames vs global frames ?