Answer:
Explanation:
From the question we are told that:
Mass of cart A
Mass of cart B
Speed of cart AA
Generally the equation for velocity of A after collision is mathematically given by
Which choice shows the correct sequence of features formed by continued wave erosion?
1 answer:
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For this case we have to, by definition:
Where:
v: It's the velocity
x: It is the distance traveled
t: It is the time spent
1 hour equals 60 minutes and 1 minute equals 60 seconds.
On the other hand:
1 kilometer equals 1000 meters
So:
On the other hand:
ANswer:
Answer:
82.76m
Explanation:
In order to find the distance of the steel ring to the ground, when its temperature has raised by 1°C, you first calculate the radius of the steel tube before its temperature increases.
You use the formula for the circumference of the steel ring:
(1)
C: circumference of the ring = 40000 km = 4*10^7m (you assume the circumference is the length of the steel tube)
you solve for r in the equation (1):
Next, you use the following formula to calculate the change in the length of the tube, when its temperature increases by 1°C:
(2)
L: final length of the tube = ?
Lo: initial length of the tube = 4*10^7m
ΔT = change in the temperature of the steel tube = 1°C
α: thermal coefficient expansion of steel = 13*10^-6 /°C
You replace the values of the parameters in the equation (2):
With the new length of the tube, you can calculate the radius of a ring formed with the tube. You again solve the equation (1) for r:
Finally, you compare both r and r' radius:
r' - r = 6,366,280.484m - 6,366,197.724m = 82.76m
Hence, the distance to the ring from the ground is 82.76m