Extending toward the southeast from the "L" marking the center of the low pressure system over the Dakotas is a warm front extending south. This front is indicated by a line with semi-circles that point in the direction that relatively warmer air is moving into a region of relatively cooler air. This front is moving toward the

a. North-northeast
b. South-southwest (warmer, cooler) weather in the next few

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?

Does current flow through or across a resistor?