Using a telescope, you track a rocket that was launched 13 km away recording the angle theta between the telescope and the ground at half‑second intervals. estimate the velocity of the rocket of theta(10)=0.205 and theta(10.5)=0.225.

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

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