6. A cannon fires a ball upward at 60m/s. How fast will this ball be moving after 4s? A. -60m/s
B. Om/s
C. 40m/s
D. 20.8m/s

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

nah.   i'm just sleepy.

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete