algebra
_____j - 4.5j =3.8j
math
(8+ )*m=5m
Pre-algebra
1,589
Fizzicks
How do you find the wavelength of a 68,000 Hz ultrasound wave in air?
30-60-90 triangle
thank you
30-60-90 triangle
The hypotenuse of a 30-60-90 triangle is 10. Find the perimeter. How do i do that?
physics
Green light has a wavelength of 4.96 10-7 m and travels through the air at a speed of 3.00 108 m/s. Calculate the period of green light waves with this wavelength. s What is the frequency? Hz
english
I don't understand the book I'm reading. Its called Goodnight Mr Tom. We writing exams on this but I really need help understanding this book. Please help me.
Algebra 2
What is probability of at least 3 heads appearing in 4 tosses of a coin
Chemistry
I have a simple question: why does mgcl2 have a higher boiling point than ncl3?? I thought mgcl2 in terms of intermolecular forces had just dispersions and because ncl3 had dispersions and dipole dipole ( cause it's polar) had a higher IMF therefore a higher boiling point?...
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