A charge of 9.0 × 10–5 C is placed in an electric field with a strength of 4.0 × 104 . What is the electrical force acting on the charge?

What is the final velocity of the initial velocity of 25 and -50?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=