It is because we can't observe chemical properties from our naked eye. So, for observing these, we need to perform appropriate experiments that may need some specific conditions. So, they are harder to observe.
Hope this helps!
Answer:
An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
Explanation:
someone's age might be an independent variable.
Answer:
Height of cliff = S = 20 m (Approx)
Explanation:
Given:
Initial velocity = 8 m/s
Distance s = 16 m
Starting acceleration (a) = 0
Computation:
s = ut + 1/2a(t)²
16 = 8t
t = 2 sec
Height of cliff = S
Gravitational acceleration = 10 m/s
S = 1/2a(t)²
S = 1/2(10)(2)²
Height of cliff = S = 20 m (Approx)
Answer:
The two blocks collide in a totally inelastic collision (That means they stick together after they collide). What is their common final velocity after the inelastic collision? ... So we will find the total momentum initially, before the collision, and set that equal to the ... Example: Two cars collide at an intersection as sketched below.
Explanation:
According to Ohm's Law, the voltage is equal to the current multiplied by resistance. Presenting the law in equation form:
V = IR
This law still applies in an R2-D2 droid circuit. Rearranging the equation:
I = V/R
Hence, the current is inversely proportional to the resistance.
