What is true about the total mechanical energy of an object? Group of answer choices 1.It is the product of the potential energy multiplied by the kinetic energy.
2.The total mechanical energy always equals the potential energy.
3. The total mechanical energy always equals the kinetic energy.
4.It is the total of the potential energy and the kinetic energy of the object.

IT IS 30 POINTS

Select the correct answer from each drop-down menu.describe what happens to a carbon-11 atom when it undergoes positron emission.the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons