54:03 Study the velocity vs. time graph shown.
What is the displacement of the object from 2 seconds to
6 seconds?
Velocity vs. Time
4 m
8 m
o 16 m
9
8
7
6
5
24 m
Velocity (m/s)
2
4
5 6
3
Time (s)

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

If the new moon happens on january 15th, what shape will it be on february 6th?

What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 480 ? the index of refraction of the film is 1.34, and there is air on both sides of the film. express your answer in nanometers. hint 1. how to approach th