Answer:
0.1 m
Explanation:
From the question given above, the following data were obtained:
Mass (m) of ball = 4 Kg
Acceleration due to gravity (g) = 9.8 m/s²
Energy (E) = 4 J
Height (h) =?
The height (h) can be obtained by using the following formula:
E = mgh
4 = 4 × 9.8 × h
4 = 39.2 × h
Divide both side by 39.2
h = 4 / 39.2
h = 0.1 m
Thus, the value of h is 0.1 m
<span>I think it is a. the evolution of a gas</span>
Answer:
<h2><em><u>C. It must reflect red light wavel</u></em></h2>
Explanation:
<em>The color of the object is reflected by the object other colors are absorbed by the object.</em>
Here <em>object appears in red color so red color is reflected by the object and other colors are absorbed.</em>
An increase in average speed of 1 km/h typi- cally results in a 3% higher risk of a crash involving injury, with a 4–5% increase for crashes that result in fatalities. — Speed also contributes to the severity of the impact when a collision does occur. Hope this helps!