At Z ... slowest speed
At Y ... fastest speed
At X ... medium speed
Wherever it is in its orbit, the line from the planet to the Sun smears over the same amount of area every second.
That's Kepler's second law of planetary motion.
The reason this happens is: That's how gravity works. (A better explanation is available, but first you have to be able to twirl calculus and solid geometry in the air on long sticks.)
The waves lose energy in the form of heat. The frequency of the waves continues to increase. Disturbances inside Earth's core cause earthquakes. The starting point of the disturbance is called the epicenter.
Answer:
When the ball is held motionless above the floor, the ball possesses only GPE energy.If the ball is dropped, its GPE energy decreases as it falls.If the ball is dropped, its KE energy increases as it falls.
Explanation:
If the ball is held motionless, then its kinetic energy is equal to zero, since kinetic energy depends on the velocity. And the ball is held above the ground, which means it possesses gravitational potential energy.
If the ball is dropped, its height will decrease, therefore its gravitational potential energy will decrease. Along the way, the ball will be in free fall, and therefore its velocity will increase, hence its kinetic energy.
Explanation:
Work done = F * d = 100N * 0.5m = 50J.
Explanation:
Physicists are scientist that studies physics. Physics is an aspect of physical science that seeks to understand the fundamental laws that governs how matter and energy interacts.
- Physics is a very broad science discipline and it uses the scientific method to investigate natural phenomenon.
- Applied physics deals with adapting physical solutions to provide technological solutions.
- Theoretical physics uses mathematical approaches to solve physics related problems.
- Experimental physics uses laboratory experiments for investigation.
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