A(n) 17 kg object, initially at rest in free space, "explodes" into three segments. The masses of two of these segments are both 5 kg and their velocities are 2.2 m/s. The angle between the direction of motion of these segments is 63 ◦. What is the speed of the third segment?

Which two particles are found in the center of an atom

Positrons are spontaneously emitted from the nuclei of

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?