What is the maximum speed at which a car could safely negotiate a curve on a highway, if the radious of the curve is 250 m and the coefficient of friction is 0.4? Give the answer in meter/sec.

An atom gains an additional electron. What is the overall charge of the ion that is formed? elt

Which excited electron has the lowest energy?

Explain how the thermal energy of a swimming pool compares to the thermal energy of a lake at the same temperature.

What is single kind of organism that can reproduce on its own?

An atom that has an excess positive or negative electrical charge caused by the loss or addition of an electron is called a (n)

Which of the following are the top two job expectations of people who career plan? Select all that apply. A. Hours B. benefits C. type of work D. coworkers E. security

Define the term volt.

A baseball player was hit by a baseball in the left eye and complains of double vision. What should you do? A. Restrict spinal movement B. Assess pupillary response C. Perform a detailed exam D. Apply ice to orbit

An approaching storm is moving at 15 km an hour what do you need to know to determine its velocity

How did astronomers precisely determine the length of an Astronomical Unit in the 1960s?