Explanation:
To balance this equation, let us properly write it;
C₇ H ₁₆ + O₂ → CO₂ + H₂O
Every chemical equation obeys the law of conservation of matter in which the number of species on both sides must be equal.
To solve this problem, rather than inspection, we use some simple, solvable algebraic equations:
aC₇ H ₁₆ + bO₂ → cCO₂ + dH₂O
a, b, c and d are the coefficients that will balance the equation;
conserving C : 7a = c
H: 16a = 2d
O: 2b = 2c + d
let a = 1
c = 7
d = 8
b = 11
C₇ H ₁₆ + 11O₂ → 7CO₂ + 8H₂O
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The Density of this Rectangular Prism would be 7.5, since the Volume of the Rectangular Prism can be determined by using the formula: length times width times height.
5*2*4, or 2*4*5, or 5*4*2= 40, because 5*2= 10, and 10*4= 40.
The Problem hereby, states that the mass of the Rectangular Prism is 300 grams, right?
Since the Formula for calculating the Density of an Object is Mass divided by Volume, 300 divided by 40 gives you 7.5, and we wouldn't make the answer 7.5 cubed, or 7.5 squared, or 7.5 grams cubed, or 7.5 grams squared, since squared would be for finding only the Area for 2-D Shapes, and cubed would be for finding only the Volume for 3-D Shapes, but in this case that we had here, We were finding Density, which includes Mass AND Volume, not just Volume.
1. Graph G
2. B and D only
3. Line segment BC is showing acceleration as the cart is increasing its speed.
4.Yes, the object moves (1) at a steady rate (2) slows down (3) stops and then rolls back, speeding up.
Answer: 2.74
Explanation:
We can solve this problem using the stopping distance formula:

Where:
is the distance traveled by the car before it stops
is the car's initial velocity
is the coefficient of friction between the road and the tires
is the acceleration due gravity
Isolating
:

Solving:

This is the coefficient of friction
Answer:
0.04865 m
Explanation:
k = Spring Constant
m = Mass
d = Distance
g = Acceleration due to gravity = 9.81 m/s²
Angular frequency is given by

At equilibrium we have

The distance by which the spring stretches from its unstrained length is 0.04865 m