rista

a ball is projected horizontally from the edge of a table that is 0.433m high, and it strikes the floor at a point 1.84m from the base of the table. the acceleration of gravity is 9.8m/s^2.what is the initial speed of the ball? how high is the ball above...

suppose a particular atom has only two allowable electron orbits. how many different wavelength photons (spectral lines) would result from all electron transitions in this atom? 1. three 2. four 3. None of these 4. one 5. two please help..

hey i tried bt i didn't got the answer.. can u help more to get answer.. please

(1+tan^2x)/ (secx) =sec^2x/secx =secx

sin x=-1 x=270

6x^2+kx-10=(3x+2)(2x-5) 6x^2+kx-10=(6x^2-15x-10) equating exuations' k=-15 is the answer.