Why are weather forecasts more reliable now compared of hundred years ago

The technology has “increased the accuracy” of forecasting the weather. Also, since it is now business world and people plan works few of the works related to forecast of weather. So now more number of people are interested to listen to forecast and plan accordingly.

Now even “google”, picks our location and intimate us the current weather and even forecast of tomorrow and all the information we can receive in one touch using smart phones. So we can conclude that the increase in the accuracy of technology has made the weather forecast more accurate.

answerpanning and scanning;

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.