Question1
A uniform meter stick with a mass of 250g is maintained horizontally by two vertical strings, one at 0.0-cm mark another at 90.0-cm mark.
(a.) What is tension in each string?
(b.) Where on the meter stick must a 150g weight so that the tensions in strings are the same?
Question2
Bob walks 160m south, after that jogs 640m southwest, after that walks 160m in a direction 35 degrees east of the north.
a. utilize trigonometry to find out the displacement that will return Bob to his starting point by most direct route. Give the answer as a distance
b. Find out the direction of displacement that will return Bob to his starting point by the most direct route
Question3
In a particular neutron-induced fission of 235U, 4 prompt neutrons are produced and one fission fragment is 121Ag.
How much energy is liberated promptly (such as before the fission fragments being to decay)?
If total initial kinetic energy of the fission fragments is 150 MeV, what is initial kinetic energy of each?
What is total kinetic energy shared by four prompt neutrons?