Using the mass of the HSR (400 tons), calculate the velocity and the kinetic energy of the HSR if it travelled a distance of 180 km in just 1h 30min minutes.

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

What’s #16 asking and how do i solve it?

Acaregiver's love, affection, and acceptance are considered conditional if they're given only when the child is well-behaved or meets set expectations. t or f