Explanation:
Given that,
Initial speed of the car, u = 88 km/h = 24.44 m/s
Reaction time, t = 2 s
Distance covered during this time,
(a) Acceleration,
We need to find the stopping distance, v = 0. It can be calculated using the third equation of motion as :
s = 74.66 meters
s = 74.66 + 48.88 = 123.54 meters
(b) Acceleration,
s = 37.33 meters
s = 37.33 + 48.88 = 86.21 meters
Hence, this is the required solution.
The best way to find that you want is the line fit. When acceleration is constant the speed(v) changes smoothly every moment, so the v line must be straight. Differently, the accelaration changes.
There are many ways to calculate force. However, they are completely different aspects. The force on an area is pressure, so F = p*A. In magnetic fields you use another formule (forgot the formule atm). Unless you define what kind of force you are looking for, I can't help you any further.
No, the light from the overhead would show you only the coin outline.
Answer:
The activation energy is
Explanation:
From the question we are told that
The rate constant is k
at the temperature
The value of k is
at temperature
The value of k is
The rate constant is mathematically represented as
Where Q is the activation energy
R is the ideal gas constant with a value of
C is a constant
T is the temperature
For the first rate constant
For the second rate constant
Now the ratio between the two given rate constant is
=>
substituting values
=>