One molecule of the spherically shaped, oxygen‑carrying protein in red blood cells, hemoglobin, has a diameter of 5.5 nm 5.5 nm . What is this diameter in meters?

Answer : The diameter in meters is,

Explanation :

As we are given that the diameter of red blood cells is, 5.5 nm. Now we have to convert it into meter.

The conversion used from nanometer to meter is:

As,

So,

Thus, the diameter in meters is,

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)