How many neutrons does element x have if it’s atomic number is 34 and it’s mass number is 76

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

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone