Answer:
The experiments are not shown, so I will answer in a general way.
By the first Newton's law, an object will only change it's velocity if there is a net force different than zero acting on the object.
Then in the experiments (depending on the experiment), you can see different things.
If an object is not moving and you apply a force in it, the object will move.
If an object is moving and you apply a force in the opposite direction of it's motion, the motion will: decrease the speed, stop at all, or move in the opposite direction. Depending on the force that you apply.
An excellent experiment (but hard to do) is dropping an object from a really high place.
The gravitational force will pull down the object and the object will start to increase it's velocity.
But there is the air resistance, that opposes to this motion and increases with the speed of the object.
Then there is a given speed such that the air resistance force will be equal to the gravitational force, then we have a balanced force (the net force is zero) which means that the object will keep falling at a constant velocity.
My average speed for a walk depends on how far I walk.
If I walk one mile or more, then my average speed is about 2 miles per hour.
Your results may be different.
Changing chemical energy to thermal energy.
Changing nuclear energy to radiant energy.
Explanation:
Changing chemical energy to thermal energy and changing nuclear energy to radiant energy are both examples of transformation of potential energy to kinetic energy.
- Potential energy is the energy at rest of a body. There are different forms of potential energy which are :
- Gravitational potential energy
- Nuclear energy
- chemical energy
- Electric potential energy
- Elastic potential energy
- kinetic energy is the energy due to the motion of particles in a medium. Examples are:
- thermal energy
- mechanical energy
- radiant energy
- electrical energy
- sound energy
- wave energy
Learn more:
Potential energy brainly.com/question/10770261
#learnwithBrainly
Answer:
Yes
Explanation:
Newton's law of universal gravitation is usually stated that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses(m1 and m2) and inversely proportional to the square of the distance between their centers(r).
F = Gm1m2/r²
This is a general physical law derived from
empirical observations by what Isaac Newton called inductive reasoning.
when distance is doubled the gravitational force will be reduced by quarter not half.
The answer is true, not only will spring tide have the lowest, consequently spring tide is also where the highest tides occur. This occurs after a new moon phase where the difference between the high and low tides are at its greatest. 2 quadrant parts of the globe will experience high tide and the other 2 quadrant will experience the lowest to balance the surface water volume.