3. Two cyclists that are 500 m apart start biking toward each other. They bike at speeds of 6 and 4 m/s.
How long does it take for them to reach each other?
a.
b. How far does the slower biker travel?

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 does si stand for,when referring to a system of measurement

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance