Stan does 178 j of work lifting himself 0.5 m. what is stan’s mass? the acceleration of gravity is 9.8 m/s 2 . answer in units of kg

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.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Which of the following are guidelines to follow for obtaining accurate observations