A thumb tack has an area of 0.5mm2 in contact with a wall.
A pressure of 40N/mm2
is needed for the drawing pin to go into
the wall.
Calculate the force needed to push the drawing pin into the wall.
Show your working and give the unit with your answer.

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:

the results is a decrease in air temperature with an increase of altitude.

explanation:

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong