A sound wave’s frequency is 10 Hz and its wavelength is 5 m. What is the speed of the wave is it 50 or 5

What are atoms of the same element with varying number of neutrons

What are similarities and differences between refraction, reflection, diffraction and absorption?

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?