<h2>When Transferring Flammable Liquids - Option A</h2>
To create a pathway for the liquid to flow easily is a correct reason to physically connect objects with a bond wire when transferring flammable liquids. Physically connect the two conductive objects together with a bond wire to eliminate a difference in static charge potential among them. The bond wire is attached between the containers in the process of flammable filling liquid actions except for a metallic path is found.
Answer:
26i-28j
Explanation:
Mathematically, rate of change of something with respect to another is obtained through the operation called differentiation. Integration is the reverse process of differentiation.
We know that force is the rate of change of momentum.
that is,
F=
where,
P=momentum
t=time
dP=small change in momentum
dt=small change in time
dP=Fdt (multiplying both sides with dt)
To get change of momentum within a particular time interval, we have to integrate the above expression giving the necessary limits according to the problem.
Here, we have to calculate the change in momentum between 1.0s and 2.0s. So, the limit of integration is 1.0 to 2.0.
Thus,
=
where,
p=momentum at t=1s
P=momentum at t=2s
substituting F in the above equation,
=
= P-p = Change in momentum between 1.0s and 2.0s
= (Since we can integrate each term of an expression separately)
=
=26i-28j
therefore the change in momentum between 1.0s and 2.0s is 26i-28j.
Note: the answer we got is a vector. Because momentum is a vector and therefore change in momentum is also a vector
The stroke that begins a point in volleyball is called a serve
If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 286J of energy to the room?
The main part of Dalton's theory that remains true is that the atoms are not created, destroyed or splited during a chemical reaction which is the principle of the mass conservation law applied to the chemical reactions.
Two wrong points are that Dalton affirmed that the atoms could no be divided into smaller particles (atoms can be divided into several subatomic particles) and that the atoms of a same element are identicals (isotopes are atoms of a same element that differ in the number of neutrons)