What is the measure of how difficult it is for current to flow in a circult?
O A
voltage
B.
resistance
C.
power
D.
energy

In science and physics what is the standard unit of measure for speed?

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air