The formula to get the velocity is V=D/T. First you need to determine the distance and time at a certain point and plug it into the equation and that will be your velocity at that point. To get it between two points you complete the directions two times and find the average or use the slope formula, slope = rise/run; slope = (y2 - y1) / (x2 - x1).
Answer:
t = 1.10 h
Explanation:
For this exercise we must calculate the intensity that reaches the cell with the polarizers, for this we use Malus's law
I = I₀ cos² θ
Let's calculate
I = I₀ cos² 60
I = I₀ 0.907
This is the intensity that reaches the cell
To find time, use an inverse proportion rule or rule of three, the intensity Io in
t = I₀ / (0.907 I₀) 1 h
t = 1.10 h
Potassium and Chlorine is a mixture.
Answer:
28.73 m from the base of the cliff collide happen
Explanation:
Equation for ball dropped from 50 cliff is reaches distance x in t seconds isi given by

stone is thrown up from the bottom with speed u=24 m/s . it reaches distance y when stone collide with ball.(g is negative here)

we know that total distance traveled by ball and stone is 50 m

adding equation 1 and 2, we get time t

substitute this time in equation 2, we can get the required distance where they collide

28.73 m from the base of the cliff collide happen