The answer is 60 mph.
The speed (v) is distance (d) per time (t): v = d/t
Car A:
v1 = ?
t1 = 2 h
d1 = ?
___
v1 = d1/t1
d1 = v1 * t1
Car B:
v2 = ?
t2 = 1.5 h
d2 = ?
___
v2 = d2/t2
d2 = v2 * t2
<span>Two cars traveled equal distances:
d1 = d2
</span>v1 * t1 = v2 * t2
<span>Car B traveled 15 mph faster than Car A:
v2 = v1 + 15
</span>v1 * t1 = v2 * t2
v2 = v1 + 15
________
v1 * 2 = (v1 + 15) * 1.5
2v1 = 1.5v1 + 22.5
2v1 - 1.5v1 = 22.5
0.5v1 = 22.5
v1 = 22.5/0.5
v1 = 45 mph
v2 = v1 + 15
v2 = 45 + 15
v2 = 60 mph
Answer:
Magneta is a mix of blue and red and is a secondary colour.
Explanation:
As we can see green is the complementary colour of Magneta.Complementary colours are the pairs of colours which when combined cancel each other out. This means that when combined they produce a grayscale colour like white or black .
Answer: Explanation:
Carbonated drinks are mixtures of water, sugar, flavorings, and dissolved carbon dioxide gas. They are homogeneous because the ingredients are mixed together to form a consistent liquid.
Answer:
The correct answer is: no definite shape or definite volume
Explanation:
The main characteristics of the gaseous state are:
-No form and no defined volume (occupy the space of the container that contains them)
-Low density
-Can be compressed easily (high compressibility)
-Gas molecules have high kinetic energy
Answer:
1/2
Explanation:
The energy stored in a capacitor is given by:
where
C is the capacitance
V is the potential difference
For capacitor 1, we have
Capacitor 2 has
(half the capacitance of capacitor 1)
(twice the potential difference of capacitor 1)
So the energy of capacitor 2 is
So, the ratio between the two energies is
