Answer:
4÷3
Explanation:
40 miles and 1 hour equals 30 minutes so 40÷ 30 gives 4÷3
Answer:
v2 = 2.36 m/s
Explanation:
Momentum is simply the the product of mass of an object and it velocity. Generally, when object moves they have momentum . The unit for momentum is kgm/s.
During collision momentum is conserved . This means that
initial momentum = final momentum
If their is an equal and opposite reaction your momentum should be equal to your BFF.
m1 v1 = m2 v2
m1 = 65 kg
v1 = 2.0 m/s
m2 = 55 kg
v2 = ?
m1 v1 = m2 v2
65 × 2 = 55v2
130 = 55 v2
divide both sides by 55
v2 = 130/55
v2 = 2.36363636364
v2 = 2.36 m/s
Arrhenius' equation relates the dependence of rate constant of a chemical reaction to the temperature. The equation below is the Arrhenius equation
where k is the rate constant, T is the absolute temperature. As the temperature of the system increases, the rate constant also increases and vice versa.
Answer:
The earthquake occurred at a distance of 1122 km
Explanation:
Given;
speed of the P wave, v₁ = 8.5 km/s
speed of the S wave, v₂ = 5.5 km/s
The distance traveled by both waves is the same and it is given as;
Δx = v₁t₁ = v₂t₂
let the time taken by the wave with greater speed = t₁
then, the time taken by the wave with smaller speed, t₂ = t₁ + 1.2 min, since it is slower.
v₁t₁ = v₂t₂
v₁t₁ = v₂(t₁ + 1.2 min)
v₁t₁ = v₂(t₁ + 72 s)
v₁t₁ = v₂t₁ + 72v₂
v₁t₁ - v₂t₁ = 72v₂
t₁(v₁ - v₂) = 72v₂
The distance traveled is given by;
Δx = v₁t₁
Δx = (8.5)(132)
Δx = 1122 km
Therefore, the earthquake occurred at a distance of 1122 km
Diagram B is correct, because light refracts when passes from one material to another.