If element X has 42 protons, how many electrons does it have?

What are some advantages and disadvantages to using superconductors as electric transmission lines

Development of facial and body hair during adolescence is an example of which of the following? secondary sex characteristics o gonad O synaptic pruning primary sex characteristics

What is the "atomic mass" of an atom?

Each metal is illuminated with 400 nm (3.10 eV) light. Rank the metals on the basis of the maximum kinetic energy of the emitted electrons. (If no electrons are emitted from a metal, the maximum kinetic energy is zero, so rank that metal as smallest.

Rank the following scenarios based on the amount of work performed from largest to smallest. 1. A force of 100 N is applied to an object as it is moved 4.0 m. 2. A force of 150 N is applied to an object as it is moved 2.0 m. 3.

Projectile motion is an example of what kind of motion

What can change scientific knowledge?

6. What is ductility?

During practice, a baseball player hits a very high fly ball, and then runs in a straight line and catches it. Which had the greatest displacement during the time period from the hitting of the ball to its catching

Why are glass fibers stronger than bulk glass?