Three charges q1 = 4.0μC q2 = -4.0μC and q3 = 3.0μC are located at -0.7i, 0.7i, +1.2j respectively. calculate the total force on q3 ? ​

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

Why is the use of carbon-14 limited

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?