The resultant of 70newton and 50newton is 80newton. find the angle between the two adjacent forces​

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

Acar travels 40m in 8 seconds find the car speed

Contains chemical energy. a. heat b. light c. natural gas