Two identical charges experience a repulsive force of magnitude 21 N when their separation is 1.6 m. What is the magnitude of each charge? k = 8.99 x 109Nm2/C2.
a. 3.41x10-50

b. 5.55x10-50

c. 2.45 10-50

d. 7.49x10-5C

What is the measure of a change in an objects velocity?

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer