A photon is best described as what A. a subatomic particle of light

B. a negativity charged subatomic particle

C. a particle larger than an atom

D. a particle inside an atom

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i