If a wave is traveling at a certain speed and it's frequency is doubled, what happens to the wavelength of that water​

Which statement is an example of the law of conservation of energy? a soccer ball eventually stops because its energy disappears. when a light bulb is turned on, electrical energy is converted to light and heat. an automobile engine burns gasoline to converts its chemical energy to electrical energy.

When receiving a serve,you ideally want the first pass to be ?

An instrument is thrown upward with a speed of 15 m/s on the surface of planet x where the acceleration due to gravity is 2.5 m/s2 and there is no atmosphere. how long does it take for the instrument to return to where it was thrown?