Category: Physics

What happens to resistance when length of wire is doubled? What happens to resistance when length is doubled? From the equation, we understand that resistance is directly proportional to the length of the conductor and inversely proportional to the crossectional area of the conductor. Doubling the length doubles the resistance. What is electrical resistivity in […]

What are the electrons that are lost gained or shared called? The electrons available to be lost, gained, or shared in the formation of chemical compounds are referred to as valence electrons (in the outer s and p levels). For main-group elements, the valence electrons are the electrons in the outermost s and p sublevels. […]

What are the five steps of the nebular hypothesis? Terms in this set (5) step one(4) -The solar nebula consisted of. -hydrogen, step two(2) -A disturbance. step three(2) -The solar nebula assumed a flat, disk shape. step four(2) -Inner planets began to form from metallic. step five(2) -Larger outer planets began forming from fragments. Why […]

Can you curl a scalar? The first says that the curl of a gradient field is 0. If f : R3 → R is a scalar field, then its gradient, ∇f, is a vector field, in fact, what we called a gradient field, so it has a curl. The first theorem says this curl is […]

What is the function of GFCI? The ground-fault circuit interrupter, or GFCI, is a fast-acting circuit breaker designed to shut off electric power in the event of a ground-fault within as little as 1/40 of a second. It works by comparing the amount of current going to and returning from equipment along the circuit conductors. […]

Should I take chemistry or physics first in high school? Most likely, you’ll be required to take biology and chemistry your first two years of high school. You should take physics your junior year if any of the following apply to you: You are confident in your math and science abilities. You plan on majoring […]

Which metal is both malleable ductile? Gold and silver are the most malleable and ductile metals. Which is most ductile metal? platinum Is Aluminium more malleable than copper? Aluminium is more flexible than copper making it easier to wind in production processes. What is the best metal conductor? Silver Which metal is most ductile Aluminium […]

What happens to the gravitational force between the two objects when the distance between them is I doubled II halved? when the distance between the 2 objects is halved, the gravitational force between the 2 objects is doubled. when the distance between the 2 objects is doubled then the gravitational force doubles. Which change will […]

How do you calculate the number of bacteria? How to calculate the number of bacteria in a population Example. The mean division time for bacteria population A is 20 minutes. In order to answer this, you can split the calculations into two sections. If the bacteria grow for six hours, each bacterium will divide 3 […]

What is the overall enthalpy change Dhrxn for the system? Hence, the overall enthalpy for the system is -1300 kJ. What is the enthalpy of the overall chemical reaction? The heat absorbed or released from a system under constant pressure is known as enthalpy, and the change in enthalpy that results from a chemical reaction […]