False, lightning is not an <span>example of matter in a liquid state. Rather, it is an example of matter in a state of plasma. </span>It<span> is a form of matter in which many of the electron s wander around freely among the nuclei of the atoms. Hope this answers the question.</span>
Answer:
Explanation:
Lets take
Resistance of bulb 1 =R₁
Resistance of bulb 2 =R₂
As we know that power P
P= ΔV²/R
Given that voltage difference is same for both bulbs
So
P₁R₁= ΔV² --------1
P₂R₂= ΔV² -----------2
When these resistance are connected in series then equivalent resistance R
R=R₁+ R₂
The new power P'
P'=ΔV²/R
P'R=ΔV² ------3
From equation 1 ,2 and 3
P'(R₁+ R₂) = ΔV²
Answer:
the acceleration is 2.5 MPH over 12 mins.
Explanation:
30 MPH in 12 minutes=
30/12=
2.5
Answer:
If the acceleration of an object remains constant, then its velocity is constant. False
If the acceleration of an object moving along a line is always 0, then its velocity is constant. True
It is impossible for the instantaneous velocity at all times aless than or equalstless than or equalsb to equal the average velocity over the interval aless than or equalstless than or equalsb. True
A moving object can have negative acceleration and increasing speed. False
Explanation:
First of all, before we can talk of acceleration, then there must be a change in velocity. If the velocity of a body is constant, then there will not be any acceleration at all.
If the acceleration is zero, then there is no change in velocity, the velocity is constant.
The instantaneous velocity is always changing all through the motion hence it cannot be determined at all times to equal the average velocity.
If the acceleration is negative, it simply means that the velocity is decreasing with time. Hence there can't be a negative acceleration and increasing velocity.