A lens collects light and focuses it into a small spot. This increases the of the light wave. A lens collects light and focuses it into a small spot. This increases the of the light wave. wavelength energy intensity frequency

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o

How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.