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den301095 [7]
2 years ago
12

Peter left town A at 13:30 and travelled towards town B at an average speed of 40mph. At 13:45 Philip left town A for town B at

an average speed of 30 mph. What was the distance between them at 15:00?
Physics
1 answer:
skad [1K]2 years ago
8 0

Answer:

fbddb

Explanation:

dsbse

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Which of the following items has the most inertia while at rest?
netineya [11]

Answer:

airplane

Explanation:

as greater mass greater inertia

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2 years ago
Why are distant objects in the universe moving away from Earth? Because the light they emit is redshifted. Because Earth's gravi
GarryVolchara [31]

Distant objects in the universe moving away from Earth because the universe is expanding.

4 0
3 years ago
The Kentucky Derby is held at the Churchill Downs track in Louisville, Kentucky. The track is one and one-quarter miles in lengt
Lera25 [3.4K]

Answer:

2.815 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration

s=ut+\frac{1}{2}at^2\\\Rightarrow 1609.34=16.58\times t+\frac{1}{2}\times 0.0105\times t^2\\\Rightarrow \\\Rightarrow 4.905t^2+16.58t-1609.34=0

t=\frac{-16.58+\sqrt{308.69254}}{0.0105},\:t=\frac{-16.58-\sqrt{308.69254}}{0.0105}\\\Rightarrow t=94.25, -3252\ s

Time taken with the acceleration is 94.25 seconds

Time = Distance / Speed

\text{Time}=\frac{1609.34}{16.58}\\\Rightarrow \text{Time}=97.065\ s

Difference in time = 97.065-94.25 = 2.815 seconds

6 0
3 years ago
Which statement BEST describes the condition of steady-state equilibrium? - System slowly adjusts to long-term changes in input
krok68 [10]

Answer:

System inputs and outputs fluctuate around a stable average so the system does not move far from its average condition.

Explanation:

Steady-state equilibrium can also be called dynamic equilibrium. The main difference between the two is the type of system we are considering. When a system is closed, and it attains equilibrium, there is no transfer of energy. In  the case of an open system, even if the system achieves equilibrium there will be some transfer of energy but it will not deviate far from it's equilibrium point, that is, it will be in a steady-state.

6 0
3 years ago
What is a measurement of the earths history divided into time periods?
Pie

<span>Fossil Record</span>

<span>Geologic Time Scale</span>

3 0
2 years ago
Read 2 more answers
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