Iron filings were mixed together with salt crystals. what unique property of iron would be best to separate the filings from the salt?

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Drag each tile to the correct box. tiles bra i sequence