The initial speed of a body is 2.98 m/s. what is its speed after 1.6 s if it accelerates uniformly at 2.51 m/s^2?
answer in units of m/s
what is its speed after 1.6 s if it accelerates uniformly at −2.51 m/s^2?
answer in units of m/s

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?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference