Calculate the weight of an object of mass, m= 2 kg, in Beirut where g= 9.8 n\kg

Apiano tuner uses a tuner to create a tone of 5.00 x 10² hz. when a key on the piano is struck he hears 5 beats per second. what is a possible frequency of vibration for the piano string? 2500 hz 1300 hz 605 hz 495 hz

Bone-strengthening physical activity done increases bone-mineral content and bone density in youth.

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k