Answer: 439.01 J
Explanation:
The Kinetic Energy at the top + Potential Energy at the top + Work Done = Kinetic Energy at the bottom + Friction loss
1/2mv² + mgh + W = 1/2 mv² + Fd
1/2 * 56.5 * (1.4)² + 56.5 * 9.8 * 2.05 + W = 1/2 * 56.5 * (6.3)² + 41 * 12.4
1/2 * 56.5 * 1.96 + 56.5 * 9.8 * 2.05 + W = 1/2 * 56.5 * 39.69 + 41 * 12.4
55.47 + 1135.085 + W = 1121.243 + 508.4
1190.555 + W = 1629.643
W = 1629.643 - 1190.555
W = 439.088
W = 439.09 J
Answer:
This is your answer
Explanation:
Actually I took this from go ogle
Hey there!
To solve this question, lets convert 108 km/h into meters per second.
1 km/h is equal to 0.277778 m/s
To convert 108 km/h into m/s, we just multiply 0.277778 by 108.
0.277778 × 108 = 30.000024
So, the train is travelling at approximately 30 meters per second.
Thank you!
To solve this problem it is necessary to apply the concepts related to Newton's second law, the definition of density and sum of forces in bodies.
From Newton's second law we understand that
Gravity at this case)
Where,
m = mass
a= acceleration
Also we know that
Part A) The buoyant force acting on the balloon is given as
As mass is equal to the density and Volume and acceleration equal to Gravity constant
PART B) The forces acting on the balloon would be given by the upper thrust force given by the fluid and its weight, then
PART C) The additional mass that can the balloon support in equilibrium is given as
Answer:
option is option d)
Explanation:
the correct option is option d)
the characteristic of thunderstorm can be seen by the following scenario
in thunderstorm there is lot of movement of air the lighter i.e.warmer air moves up and the colder air moves down creating the condition of thunderstorm.
heavy rain , strong wind , potentially large hail stones is the situation of the thunderstorm.
during thunderstorm there is rain and snow at intermediate.
hence only option left is option d.