the speed of light in a certain medium is 0.6c. find critical angle , if the index of refraction is 1.67​

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

If the new moon happens on january 15th, what shape will it be on february 6th?