Where can volcanoes form? A. Where there are cracks in the crust B. Along fault lines C. Where the crust is thin and can be ruptured D. All of the above

three identical metal spheres are labelled a, b and c. initially, a has charge + 5q/2, b has charge + 3q/2 and c has charge - 4q. b is first touched to a, removed, then touched to c and removed.

What are 90 percent of the stars in space called?

A sudden discharge of static electricity during a thunderstorm is called

How can light change matter

A motorist driving a 1000-kg car wishes to increase her speed from 20 m/s to 30 m/s in 5 s. Determine the horsepower required to accomplish this increase. Neglect friction.

Gravitational force is a (n) ? A) attractive force B) repulsive force C) both an attractive and repulsive force D) neither an attractive or repulsive force

A damped harmonic oscillator loses 6.0% of its mechanical energy per cycle. a. by what percentage does its frequency (equation 14-20) differ from its natural frequency? b.

What element will form an ionic bond with carbon

State the condition for maximum current to be drawn from the cell

Anti-reflective coatings on lenses use thin-film interference to eliminate the reflection of a particular color. Suppose a glass lens (ng = 1.53) is covered with a thin film (nf = 1.31) to prevent green light (λ = 534 nm) from being reflected.