4 physics questions I need help with What is the electric charge on a pion having quark composition ud?

What is the electric charge on a pion having quark composition db?

A particle has a quark composition of dds. What is the charge on the classification db?

1)-1e, baryon

2)+1e, baryon

3)-1e, meson

4)+1e, meson

A particle has a quark composition of su. What is the charge on and classification of the particle?

1)-1e, baryon

2)+1e, baryon

3)-1e, meson

4)+1e, meson

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

Steam enters an adiabatic diffuser at 150 kpa and 1208c with a velocity of 550 m/s. determine the minimum velocity that the steam can have at the outlet when the outlet pressure is 300 kpa.

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.