Which contributes most to our average dose of background radiation? A) Natural sources
B) Artificial sources
C) Natural and artificial sources both contribute 50 per cent#

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes