A book falls off of a \displaystyle 2.2m high table. If the book weighs \displaystyle 0.75kg, what will its final velocity be right before it hits the ground?
Answer:
7.83
Explanation:
Just using the speed ,distance and time relation..Let time be T
Use this formula and find the distance covered by automobile .
Do same for car ..
and at last subtract the distance of automobile to car =141.
i.e (Distance of automobile -Dist.of car )=141
<span>that statement is true.
In walking process, we need the force of friction so our feet could pushed back agains the ground. Without the force of friction it would be really hard to stand. And even we could stand, we will be sliding all over the place when we try to walk.</span>
In order to make things easier to describe and explain, let's call
the resistance of each bulb 'R', and the battery voltage 'V'.
a). In series, the total resistance is 3R.
In parallel, the total resistance is R/3.
Changing from series to parallel, the total resistance of the circuit
decreases to 1/9 of its original value.
b). In series, the total current is V / (3R) .
In parallel, the total current is 3V / R .
Changing from series to parallel, the total current in the circuit
increases to 9 times its original value.
c). In series, the power dissipated by the circuit is
(V) · V/3R = V² / 3R .
In parallel, the power dissipated by the circuit is
(V) · 3V/R = 3V² / R .
Changing from series to parallel, the power dissipated by
the circuit (also the power delivered by the battery) increases
to 9 times its original value.
Answer:
I wrote down the answer and attached it below.
Explanation:
Hope this Helps!!!!
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