1. If the frequency of a wave increases from 2 Hz to 4 Hz without the wavelength changing, how will the wave speed change? PLS HELP

What layer of the atmosphere is directly above the troposphere?

The diagram below shows the movement of particles. what does this piece of evidence best support? the collision theory the maxwell-boltzmann distribution the effect of pressure on reaction rates the effect of temperature on reaction rates

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury