Iron melts at 1535 degrees c. the inner core of the earth is solid. explain why this might have happened.

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk, in meters?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f. s. = 2 against bucklin