A father and daughter are sitting on a see-saw that is 2 meters long. The father has a weight of 600N and the daughter has a weight of 150N. Where does the father have to sit to balance the child who is sitting on the other end?

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.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?