7. What's the process that a spark represents? O A. A body with a strong positive charge is placed near a body with a strong negative charge and the electrons jump
between the two bodies
O B. A body with a strong positive charge is placed near a body with a neutral charge and the electrons jump between the
two bodies
O C. A body with a strong positive charge is placed near a body with a strong positive charge and the electrons jump
between the two bodies
OD. A body with a neutral charge is placed near a body with a strong negative charge and the electrons jump between the
two bodies

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)

Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.

Does anyone have the answers to online physics course plato course physics, semester a v3.0