You are the engineering duty officer getting your submarine, the uss greenville, ready to put to sea. when nuclear material in the reactor is fissioning at an increasing rate, this is known as a:
1) increasing the current flow
2) increasing the number of coils
3) passing an 'iron core' through the coil of the electromagnet
speed is different from velocity. velocity is a vector quantity and has a direction. speed is a scalar quantity and does not require a direction. the answer must be d).
i think a is also correct