The emission spectrum of hydrogen in visible light range shows four sharp colorful lines at the wavelengths of 0.656, 0.486, 0.434, and 0.410 um. (a) pore (i) explain the origin of the emission spectrum using the bohr atom model. determine the energies between the levels that are involved in the emission process

The speed of light can be used to measure the

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

Explain why electric current cannot exist if a current doesn't have a voltage source.