The total resistance is 3 ohms.
And the battery voltage ... or even the presence of a battery ... doesn't matter.
The following statement which best justifies the inclusion of test tube v as a control in the experiment is that it will show the color change that occurs in the absence of enzyme activity and is denoted as option C.
<h3>What is an Enzyme?</h3>
This is referred to as a biological catalyst which is involved in the speeding up of the rate of a reaction by lowering the activation energy used to initiate the reaction.
Enzymes are known as proteinous in nature and are denatured by heat and other substances is included in the test tube v as a control in the experiment is that it will show the color change that occurs in the absence of enzyme activity.
This therefore helps to differentiate the enzymatic processes which takes place in a substance or body therefore making option C the correct choice.
Read more about Enzyme here brainly.com/question/1596855
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The options are:
- It will provide a measurement of amylase activity at an acidic pH.
- it will provide a measurement of amylase activity at a basic pH.
- It will show the color change that occurs in the absence of enzyme activity.
- it will show the color change that occurs in the absence of the amylase protein.
It will show the color change that occurs in the absence of enzyme activity.
The answer is B this can be easily shown if you have ever gotten up on a bus its the same effect but if you have trouble just elimination works A and D are outrageous and wrong C i can see the confusion but a train or a bus making you go in motion but your body wants to keep moving so it keeps in motion
Answer:
C) 19 m/s
Explanation:
The motion of the cannonball is a projectile motion, which consists of 2 independent motions:
- A uniform motion (constant velocity) along the horizontal direction
- A uniformly accelerated motion (constant acceleration) along the vertical direction
As a result, we have the following:
- The horizontal velocity of the cannonball remains constant during the motion, and it is given by

where
u = 25 m/s is the initial velocity
is the angle
Substituting,

- The vertical velocity keeps changing during the motion due to the acceleration of gravity. However, at the top of the trajectory, the vertical velocity is zero:

This means that at the top of its path, the cannonball has only horizontal velocity, so its velocity is
C) 19 m/s