What happens to the electronegativity of elements as you move from bottom left to upper right across the periodic table?

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of