Answer:
Part a)
Speed of the roller coaster is
Part b)
Since it is moving with non zero speed at some height above the ground
So we will have
Kinetic energy + Potential energy Both
Explanation:
As we know that there is no friction on the path
So here we can use mechanical energy conservation law
so we will have
Part a)
Part b)
Since it is moving with non zero speed at some height above the ground
So we will have
Kinetic energy + Potential energy Both
Answer:
Energy implies as the object’s capability to perform work. It is something that cannot be created or destroyed but can only be transformed. An object loses its energy, when it performs work, whereas it gains energy when the work is performed on it. Energy is broadly classified as kinetic energy and potential energy. While kinetic energy is the energy which an object contains because of a particular motion.
On the other hand, potential energy is the stored energy, because of its state of rest. As both the two forms of energy are measured in joules, people get easily confused between these two. So, take a read of the article which will help you to understand the differences between kinetic and potential energy.
Explanation:
Hope this helps - Good luck ^w
Answer:
The total distance traveled by the comet is 225000 [km]
Explanation:
In order to determine the travel distance we must use the following kinematics equation:
x = v*t
where:
x = distance traveled [km]
v = velocity = 50000 [km/h]
t = time = 4.5 [h]
x = 50000*4.5 = 225000 [km]
The correct answer would be D. In an isolated system, the total amount of matter is conserved. This is in agreement with the law of conservation of mass where mass cannot be created or destroyed, what goes inside the process should be the same amount as what goes out the process.
Answer:
Doppler effect, the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer, caused by relative motion of the observer and the wave source. This phenomenon is used in astronomical measurements, in Mössbauer effect studies, and in radar and modern navigation.
Explanation:
