Den pushes a desk 400 cm across the floor he exerts a force of 10 no for 8 so to move the desk what is the power in put

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

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=

Aparticle moves in a circle 1.50 m in radius . through what angle in radians does it rotate if it moves through an arc length of 2.50m? what is the angle in degrees?