Answer:
Centripetal force = 634.6 newton
Explanation:
Given that,
Weight of the automobile, M = 125 Kg
The tangential speed of the automobile, V = 48 Km/h
V = 13.33 m/s
The radius of the circular road, R = 35 m
The centripetal force is given by the relation
Fc = MV²/R
Where M - the mass of the body
V - velocity of the body
R - Radius of its trajectory
Substituting in the above equation
Fc = 125 Kg x 13.33² m²/s² / 35 m
= 22211.11 / 35 newton
= 634.6 newton
Hence, the centripetal force acting on the automobile is 634.6 N
Answer:
1.1 x 10⁵m/s²
Explanation:
Given parameters:
Velocity = 452m/s
distance = 0.93m
Unknown:
Acceleration of the bullet = ?
Solution:
To solve this problem, we use one of the kinematics equation which is given below:
V² = U² + 2aS
V is the final velocity
U is the initial velocity = 0m/s
a is the unknown acceleration
S is the distance traveled
So;
452² = 0² + (2 x a x 0.93)
204304 = 1.86a
a = 1.1 x 10⁵m/s²
Your equation is:
![2NaOH + H_{2}SO_{4} ==\ \textgreater \ Na_{2}SO_{4} + H_{2}O](https://tex.z-dn.net/?f=2NaOH%20%2B%20H_%7B2%7DSO_%7B4%7D%20%20%3D%3D%5C%20%5Ctextgreater%20%5C%20%20Na_%7B2%7DSO_%7B4%7D%20%2B%20H_%7B2%7DO)
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:
![2NaOH + H_{2}SO_{4}\\ \\ Na: \: 2 \: atoms\\ O: \: 2 + 4 = 6 \: atoms\\ H: \: 2 + 2 = 4 \: atoms\\ S: \: 1 \: atom](https://tex.z-dn.net/?f=2NaOH%20%2B%20H_%7B2%7DSO_%7B4%7D%5C%5C%0A%5C%5C%0ANa%3A%20%20%5C%3A%202%20%5C%3A%20atoms%5C%5C%0AO%3A%20%5C%3A%202%20%2B%204%20%3D%206%20%5C%3A%20atoms%5C%5C%0AH%3A%20%5C%3A%202%20%2B%202%20%3D%204%20%5C%3A%20atoms%5C%5C%0AS%3A%20%20%5C%3A%201%20%5C%3A%20atom)
2) On the right, you have:
![Na_{2}SO_{4} + H_{2}O\\ \\ Na: \: 2 \: atoms\\ O: \: 4 + 1 = 5 \: atoms\\ H: \: 2 \: atoms\\ S: \: 1 \: atom](https://tex.z-dn.net/?f=Na_%7B2%7DSO_%7B4%7D%20%2B%20H_%7B2%7DO%5C%5C%0A%5C%5C%20%0ANa%3A%20%5C%3A%202%20%5C%3A%20atoms%5C%5C%20%0AO%3A%20%5C%3A%204%20%2B%201%20%3D%205%20%5C%3A%20atoms%5C%5C%20%0AH%3A%20%5C%3A%202%20%5C%3A%20atoms%5C%5C%20%0AS%3A%20%5C%3A%201%20%5C%3A%20atom)
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: Condensation of moisture in the air onto the glasses.
Explanation:
When you come from a cold environment into a warm ski lodge, the glasses are at a much lower temperature than that of the lodge.
Because the air in the room contains moisture (water vapor), it condenses on a surface whose temperature is lower than the dew point of the room.