Planet Y has a radius 4 times that of Earth but the same mass. What is the strength of the gravitational field on its surface?

(1) 4g
(2) 16g
(3) 1/4g
(4) 1/16g

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:

an obstruction

compass can be used day and night, cloudy or sunny

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.