NOTE: the tennis ball machine and tennis ball are initially at rest. North is positive and South is negative. A tennis player places a 62 kg ball machine on a frictionless surface. The machine fires a 0.056 kg tennis ball horizontally with a velocity of 41 m/s toward the north. What is the final velocity of th

this is a good question! i'll do some research and come back when i have the answer!

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =