in which of the following reactions can we hear a pop sound with burning match stick. a.sodium+oxygen? b.magnesium+water? c.carbon dioxide+water d.sodium+hydrochloric acid
Mynameismohammed
Asked:
December 2022
A simple pendulum makes 20 oscillations in 40 seconds. what is the time period and frequency of its oscillations? i need full explanation with the method ok plz
Mynameismohammed
Asked:
December 2022
what is the angle between the incident and reflected rays when a ray of ligth incident normally on a plane mirror
Mynameismohammed
Asked:
December 2022
A simple pendulum makes 20 oscillations in 40 seconds. what is the time period and frequency of its oscillations? i need full explanation with the method ok plz