Answer:
A. Time, t = 4.35s
B. Height of its fall, S = 92.72m
Explanation:
Vo = 0 m/s
Vi = 0.46h m/s
S = h m
a = 9.81 m/s2
To calculate the time taken, we need to get the value of the distance, h.
Using the equations of motion,
Vi^2 = Vo^2 + 2aS
Where Vi = final velocity
Vo = initial velocity
a = acceleration due to gravity
S = height of its fall
(0.46h)^2 = 0 + 2*9.81*h
0.2116h^2 = 19.62h
h = 19.62/0.1648
= 92.722 m
To calculate the time,
S = Vo*t +(1/2)*a*t^2
92.772 = 0 + (1/2)*9.81*t^2
t^2 = 185.44/9.81
= 18.904
t = sqrt(18.904)
= 4.348 s
Answer:
Green
Explanation:
Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll. A pigment is a molecule that has a particular color and can absorb light at different wavelengths, depending on the color
Answer:
Explanation:
The horizontal component of the velocity = 19.5 cos 36.5 = 15.67m /s
The vertical component = 19.5 sin36.5 = 11.6 m /s
height h = 15.5
we shall first find the time of fall of the ball into water
vertical displacement = height = 15.5 ( positive and g will be positive as it is downwards .
s = ut + 1/2 gt²
15.5 = - 19.5 sin36.5 t + 1/2 x 9.8 x t²
4.9 t² - 11.6 t - 15.5 = 0
t = 3.31 s
During this period ball will travel in horizontal velocity of 15.67 m /s uniformly
horizontal displacement before touching water
= 3.3 x 15.67
= 51.7 m .
Don’t quote me on this but I think:
Magnesium: two valence electrons, 2 dots, 2 oxidation #
Sodium: one valence electron, one dot, +1 oxidation
Arsenic: five valence electrons, 5 dots, either -3,+3, or +5
Bromine: 7 valence electrons, 7 dots, either 1-,1*,5+
I hope this helps
The basic unit of the measure of the rate of current flow in a conductor is ampere.
Option B) ampere is the correct answer.
<h3>What is Current?</h3>
Current is simply the rate of flow of charged particles such as electrons caused by:
An ampere is simply a unit of measure of the rate of current flowing through a conductor.
Ampere is the SI basic unit of electric current
Therefore, the basic unit of the measure of the rate of current flow in a conductor is ampere.
Option B) ampere is the correct answer.
Learn more about electric current here: brainly.com/question/3192435
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