Calculate the relative atomic mass of MgO​

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

What type of nuclear decay causes the atomic number of an element to increase by 1?

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.