Answer:group polarization
Explanation:
20km/s2
Explanation:
a=(final velocity-initial velocity)/time
final velocity=a * time + initial velocity = 2km/s2 * 4s + 12km/s = 20km/s2
Multiplying the power of any signal by 5 can be described as
an increase of 6.99 dB .
If the whistle blew at 70 dB initially, and its sound power became
multiplied by 5, and the whistle and the listener both stayed in
the same places, then the listener would tell you that the whistle
was now blowing at 76.99 dB .
(More likely, he would report "77 dB" as he held his ears and winced.)
Your equation is:
An equation is balanced only if there are the same number of atoms of each element on both sides of the arrow - aka same number of atoms of each element in both reactants (left of the arrow) and products (right of the arrow).
It'll be easiest to tackle this by counting up the number of atoms of each element on the left and on the right and comparing those numbers. If there is a number in front of the entire compound, that means that number applies to all elements in the compound. If the number is a subscript (little number to the right of the element), that means that number only applies to the element that the subscript is attached to:
1) On the left, you have:
2) On the right, you have:
You can see that the number of oxygen and hydrogen atoms aren't equal on both the left (reactants) and the right (products), so the equation is unbalanced.
Your final answer is "T<span>he equation is
unbalanced because the number of hydrogen atoms and
oxygen is
not equal in the reactants and in the products."</span>
Answer:
The maximum range obtainable by a person if he has a take-off speed of 9.5 m/s is 9.21 m
Explanation:
The only assumptions are that
Acceleration due to gravity = 9.8 m/s²
The equation for range of a projectile, R = (u² sin 2θ)/g
u = initial takeoff velocity = 9.5 m/s, θ = angle of jump.
To attain the maximum range, the (sin 2θ) has to be maximized to 1, that is,
Sin 2θ = 1 = sin 90°
2θ = 90°
θ = 45°
Therefore, the maximum angle of jump had to be 45°
R = (9.5² sin (2×45°))/9.8 = 9.5²/9.8 = 9.21 m