An elastic wire was vertically
Suspended by a mettalic ball of mass 6000g calculate its extension provided the constant of proportional is 1.2N/M

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical

Explain the difference in reactivity of the elements based on their electron configurations.