Answer is B. Conduction
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Conduction is a heat it transferred to the heat by touching your hand.
Hope it helped you.
-Charlie
Answer:
Force = mass × acceleration
Explanation:
The amount of force required to drag the object across the table is the product of the mass of the object and acceleration
1. Answer:
It allows scientists to predict things about objects that are too small to see.
Explanation:
Atomic models are crucial to the scientific study of atoms. Through models, we represent atoms that we actually cannot see. Observation based study and testing is done through that model which helps us find flaws in one model so that a better model is made. In this way, it is helpful to study about atoms through atomic models.
2. Answer:
The correct step in a scientific experiment involving acids and bases is:
Using an indicator to measure the hydrogen ion concentration of a solution.
Explanation:
Two acids can never neutralize each other. The pH of a neutral solution is 7. Whereas pH of an acid is always less than 7.
Indicators are used to measure the pH of solutions. They give different colors in solutions with different solutions. So, in an experiment to check if the solution is acidic or basic, we need to measure its hydrogen ion concentration for which an indicator is used.
Answer:
<em>The second drop is 3.75 m above the ground</em>
Explanation:
<u>Free Fall Motion</u>
A free-falling object falls under the sole influence of gravity without air resistance.
If an object is dropped from rest in a free-falling motion, it falls with a constant acceleration called the acceleration of gravity, which value is .
The distance traveled by a dropped object is:
If we know the height h from which the object was dropped, we can find the time it takes fo hit the ground:
When the first drop touches the ground there are two more drops in the air: the second drop still traveling, and the third drop just released from the tap.
The total time taken for the first drop to reach the ground is:
Half of this time has taken the second drop to fall:
It has fallen a distance of:
Thus its height is:
h = 5 - 1.25 = 3.75
The second drop is 3.75 m above the ground
F = ma
double f and m gives
(2f) = (2m)a
notice a is unchanged = 2.2
m/s^2