The use of EMS to send information in all directions is radio. t or f

What is the percentage composition of carbon in the compound ch4

Can someone me with 3 and 4 plz. this is for masteries test.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth