Answer:
The position of the image = 7.2 cm.
Explanation:
Given:
A Converging lens:
Object distance = 12 cm = -12 cm (sign convention)
Focal length = 18 cm
We have to find the position of the image.
Let the position of the image be .
Sign convention:
The focal length of converging (convex) lens is always positive,while object distance is negative.
Using lens formula:
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒
⇒ cm
So the position of the image = 7.2 cm.
<h3><u>Answer;</u></h3>
5.1 km
<h3><u>Explanation</u>;</h3>
The longest measurement made is 3.2 miles
But the SI units of distance is Km
1 mile = 1.61 km
Therefore; <em>3.2 miles will be equivalent to ; </em>
<em>3.2 × 1.61 </em>
<em>= 5.152 </em>
<em>≈ </em><u><em>5.1 </em></u><u>km</u>
Answer:
When the bowling ball is rolled with a force, this accelerates the ball. That acceleration, when combined with the mass of the ball, produces a force that knocks down the pins.
Explanation:
That is because you accelerate the ball with a force when you roll it, and the mass of the ball has a force that knocks down the pins.
Answer:
6250 J
Explanation:
Work is the distance times the component of the force along that distance.
The horizontal component of the force is:
25 N × cos(60°) = 12.5 N
So the work done is:
W = (500 m) (12.5 N)
W = 6250 J
Explanation:
Increase the temperature in Endothermic reactions (Reactions that absorb energy, or become cold) Decrease the temperature in Exothermic reactions (Reactions that release energy, or become hot) Add a catalyst (A substance that reduces activation energy, speeding up the reaction) Increase the concentration of reactants.
source: https://socratic.org/questions/how-can-a-chemical-change-be-speeded-up