If the net force on an object is in a negative direction what will the direction of the resulting acceleration be?

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

The mini-refrigerator fire was most likely caused by what type of wiring?

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?