The resultant of four forces is 1000 N in the direction 30° west of North. Three forces are 400 N, 60° North of East,200 N south and 400 N 53° west of south. The rectangular components of the fourth force are ??

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

Which of the following statements correctly describes a transformer?