Which shows the correct order of events during the process of nucleosynthesis? O hydrogen nucleus formed, isotope of hydrogen, tritium formed, helium nucleus formed helium nucleus formed, hydrogen nucleus formed, isotope of hydrogen, tritium formed O hydrogen nucleus formed, helium nucleus formed, isotope of hydrogen, tritium formed O helium nucleus formed, isotope of hydrogen, tritium formed, hydrogen nucleus formed

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

What are similarities and differences of reflection, refraction, diffraction and absorption?