Answer:
Revise energy transfers and use sankey diagrams to calculate the efficiency of these conversions with BBC ... Efficiency is a measure of how much useful energy is converted. Part of ... This is the Sankey diagram for a typical filament lamp: 100 joules of electrical energy is converted to 10 joules of light energy and 90 joules.
Explanation:
You multiply the mass by the acceleration 82*7.5=615; that's what I would do
Explanation:
Make a table, listing the x and y coordinates of each square's center of gravity and its mass. Multiply the coordinates by the mass, add the results for each x and y, then divide by the total mass.
The x-coordinate of the center of gravity is 15/14 a.
The y-coordinate of the center of gravity is 47/42 a.
I think d because they are both increasing
Answer:
Momentum of system = 37.2 Kgm/s.
Explanation:
<u>Given the following data;</u>
- Mass A = 5 kg
- Velocity A = 6 m/s
- Mass B = 12 kg
- Velocity B = 0.6 m/s
To find the momentum of the system;
Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.
Mathematically, momentum is given by the formula;
Momentum = mass * velocity
<u>For object A;</u>
Momentum A = 5 * 6
Momentum A = 30 Kgm/s
<u>For object B;</u>
Momentum B = 12 * 0.6
Momentum B = 7.2 Kgm/s
Next, we would determine the momentum of this system using the formula;
Momentum of system = Momentum A + Momentum B
Substituting the values into the formula, we have;
Momentum of system = 30 + 7.2
<em>Momentum of system = 37.2 Kgm/s.</em>
