After taking the metro to dupont circle in washington, dc, jess reached street level by walking up the escalator at a brisk rate, taking 70 steps during the trip to the top. suddenly curious about the length of the escalator, jess returned to the bottom and walked up the same escalator at a leisurely rate, taking steps two fifths often as on the first trip, taking 40 steps in all. how many steps can be seen on the visible part of the escalator?

the answer is to check all of them! they all apply well at least i think so!

ice to water 1 water to vapour 2 latent heat

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.