A24 kg child descends a 5.0 m high slide and reaches the ground with a speed of 2.8 m/s. what is the mass of the child?

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j