An example of an atom that has no charge is one that has

a. 1 proton, 2 electrons, and 3 neutrons.
b. 3 protons, 1 electron, and 3 neutrons.
c. 2 protons, 2 electrons, and 1 neutron.
d. 3 protons, 2 electrons, and 1 neutron.

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

How does an observation about an object differ from an inference about that object

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.