Hi , a class 2 lever has the load between the force and the fulcrum .So a stapler is a good example.
The centre of mass of the objects is (0,1)m .
What do you mean by Centre of mass?
The centre of mass is a position defined relative to an object or system of objects .
We have given
m1=2kg , y1= 3
m2= 3kg ,y2=2.5m
m3=2.5kg ,y3= 0m
m4=4kg , y4= -0.5m
Ycm=mixi/mi
→2×3+3×2.5+2.5×0+4×0.5/4.5
→1m
Centre of mass of these object is at (0,1)m .
to learn more about centre of mass click herehttps://brainly.com/question/19426784
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Answer: The correct answers are kinetic energy and the potential energy.
Explanation:
The kinetic energy is due to the motion of the object. The potential energy is due to the position of the object.
In the given problem, the skater's board falls back to the ramp. When the skater'board falls on the ramp then the potential energy will get decreased and the kinetic energy will get increased and vice versa when the skater's board moves up the ramp.
The total energy of the skater's board remains constant when the skater's board moves down the ramp. The total energy of the skater's board remains constant when the skater's board moves up the ramp. It follows the law of conservation of energy.
Therefore, the correct answers are kinetic energy and the potential energy.
Please look up the answer on Brainly before answering again.
For car A: y=20x-200 A moves 20 meters every second x, and starts 200m behind BFor Car B: y= 15x B moves 15 meters every second and starts at basisSet two equations equal to each other to find time x where they meet:20x - 200 = 15x200 = 5x x= 40A moves 20 meters every second:20x40=800m
Answer:
it would be A as the first sentence is saying the cause for global warming while the second is the effect
