3. (a) The speed of light is 2.25 x108m/s in water and 3.0 x10 m/s determine
1. Speed of light in diamond
i. Critical angle for diamond

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?