11) A 2.7kg block is at rest on a 30 degree incline. Select the 2 answers that match the parallel and perpendicular components of gravity in this situation. Round to the ones place 50N
23N
13N
47N

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Which statement best explains why the overall charge on an atom is zero?

Which inventor was often called the lady edison