Velocity of cyclist one is 7m/s and cyclist 2 is 4 m/s what is the frame of reference for cyclist 1 and velocity of cyclist 2

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

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?

What happens when you slowly pulled the carboard?