how many photons are contained in a flash of orange light (605 nm) that contains 230 kj of energy? give your answer to 2 significant figure and in scientific notation.

close lines strong magnet less close weaker

we need to know the time interval during which the force acts. impulse of force = momentum change

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle