Ineed with this geometry question.

A general problem solving idea that's good to have in your toolbox is "the whole is equal to the sum of its parts." Here, our parts are the angles ∠STC and ∠CTU, and they combine to make the whole, angle ∠STU. We can write this as the equation

m∠CTU + m∠STC = m∠STU

Using the values m∠CTU = 89° and m∠STU = 155°, this becomes

89° + m∠STC = 155°

The only value that makes this true is 66°, so we can conclude that m∠STC = 66°.

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v