A car starts from rest and reaches a speed of 20m/s in 5 second what is the acceleration of the car

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

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=