Two identical metal spheres are initially charged such that Sphere 1 hold +4 C, and Sphere 2 holds -4 C.  Subsequently they are brought into electrical contact.  What will be the final charge on Sphere 1?

Which of the following are necessary of a scientific hypothesis?

As part of their reproductive cycle, helminths produce egg and sperm cells. Both of these eukaryotic cell types have an outer surface composed of polysaccharides known as the ______.

A disc is composed of a material with thermal expansion coefficient 0.0003 in appropriate units. If it’s diameter is 1.000 cm at precisely freezing temperature, what is it’s diameter at boiling temperature?  

You are driving along a country road, and you spot a deer grazing at the road’s edge.  You slow the car.  What object is exerting the force to slow the car?

Which of Newton’s Laws is most closely connected to the conservation of momentum?

What is the direction of acceleration of a free falling mass near the Earth’s surface?

For a traveling electromagnetic wave:

When multiplying pressure and area, the units of obtained quantity are:

How many electrons occupy the outermost shell of lithium?