Identify the independent and dependent variables of a project about which sheet of paper fall fastest: unfolded, crumpled or folded in fourths.

Aparticle initially moving east with a speed of 20.0 m/s, experiences an acceleration of 3.95 m/s, north for a time of 8.00 s. what was the speed of the particle after this acceleration, in units of m/s? give the answer as a positive number.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

What causes the formation of ocean currents?