The breaking car had 10,000 J of kinetic energy before breaking after breaking it had 2000 J of kinetic energy. How much thermal
1 answer:
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Answer:
Plane will 741.6959 m apart after 1.7 hour
Explanation:
We have given time = 1.7 hr
So if we draw the vectors of a 2d graph we see that the difference in angles is =
Speed of first plane = 730 m/h
So distance traveled by first plane = 730×1.7 = 1241 m
Speed of second plane = 590 m/hr
So distance traveled by second plane = 590×1.7 = 1003 m
We represent these distances as two sides of the triangle, and the distance between the planes as the side opposing the angle 58.6.
Using the law of cosine, representing the distance between the planes, we see that:
r = 741.6959 m
Answer:
22145.27733 ft
124984.76055 ft
Explanation:
The equation of pressure is
where,
=Atmospheric pressure = 800 mbar
k = Constant
h = Altitude = 35000 ft
Now
The altitude will be 22145.27733 ft
The elevation is 124984.76055 ft
Answer:
Mechanical energy = 3.92 J
exactly 3.92 j
Explanation:
As we know that mechanical energy is sum of kinetic energy and potential energy of the system
so here we can say that mechanical energy is sum of kinetic energy of ball and its potential energy
Since ball is at rest so kinetic energy of the ball must be ZERO
Now for potential energy we know that
now we know
m = 0.2 kg
h = 2 m
now for potential ene'rgy
so mechanical energy is given as
Mechanical Energy = 3.92 + 0 = 3.92 J