Galileo, giotto, magellan, mariner 2 these are all used to travel out of earth's orbit to explore places that would be too dangerous for astronomers or astronauts. these devices hold instruments to collect data specific to their destinations.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature