Which substances are commonly found far from the Sun? Select all that apply.

a. iron

b. water

c. methane

d. ammonia E. silicate rocks F. carbon dioxide

If an object has a mass of 81 kg, what is its approximate weight on earth?

A swimmer takes 45 seconds to complete a 100-meter lap. Calculate the swimmer's average speed.

What is the difference in the meaning between the lengths of lines in a phylogram and ultrametric tree?

Which do you think will penetrate farther into a block of lean, x-rays or gamma rays? Explain your reasonings.

For the following series circuit, compute the power in R1, R2, and R3 if the circuit values are E = 24 volts, R1 = 8, R2 = 12, and R3 = 28.

Use the data from the table to calculate the average rate of change of martian temperature t with respect to time t over the interval from 8:07 am to 9:34 am. (round your answer to three decimal places.)

Determine el valor de la potencia electrica que experimente un circuito cual se somete a 120 voltios emitidos por accion de las cargas electricas que viajan a través de el y que experimentan 4 amperios de intensidad, durante todo el trayecto del

Some wave characteristics depend upon how the wave is produced. other wave characteristics depend upon the properties of the medium.

What is the mass of oxygen in an oxygen tank at 20 C if the tank has a volume of 0.20 m3 and the oxygen pressure in the tank is 4.0 105 N/m2 (mass of one mole of one mole of oxygen is 16 g and the universal gas constant is 8.

Normal conversation in an office produces a decibel rating of 50 db. how many identical voices could you add without exceeding a sound intensity of 100 db?