Joshua is doing an experiment. Before he can begin the experiment, he must measure and record the mass of several different samples. The data he has collected so far is recorded in the table below.

Sample Mass
1 0.45 kg
2 0.11 kg
3 0.37 kg
4 ?

The mass of his last sample is shown on the display below.

How should he record the mass of sample 4 in his table?

The volume of a gas is halved during an adiabatic compression that increases the pressure by a factor of 2.5. what is the specific heat ratio? show the math steps .

Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).