happy valentines everyone <3 I dont want a partner i just want a crumb of future PLEASE "A steel bridge is 1000 m long at -20°C in winter. What is the change in length when the temperature rises to 40°C in summer? The average coefficient of linear expansion of this steel is 11 x 10-6 K-1. *

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

What is the measure of a change in an objects velocity?

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c