The correct answer is: <span>X, W, Y, Z
In fact, the elastic potential energy of a spring is given by
</span>
![U= \frac{1}{2}kx^2](https://tex.z-dn.net/?f=U%3D%20%5Cfrac%7B1%7D%7B2%7Dkx%5E2%20)
<span>where k is the spring constant and x is the stretching of the spring with respect to its rest position.
In this problem, all the four springs are stretched by the same distance x. This means that their difference in potential energy is due only to the difference between their spring constant: the larger the spring constant, the greater the energy. Therefore we can list the springs from the one with largest spring constant to the one with smallest constant, and this list corresponds to listing the springs from the one with largest energy to the one with smallest energy:
X, W, Y, Z</span>
Temperature is measure of hotness and coldness of of a matter but, thermal energy is can refer to several distinct thermodynanics quantities such as the internal energy of system heat or sensible heat wich are defined as types of transfer heat.
Answer:
Gravitational potential energy = 524.85 kJ
Explanation:
Refer the figure.
Gravitational potential energy = mgh
Mass, m = 75 kg
Acceleration due to gravity, g = 9.81 m/s²
We have
![sin14.6=\frac{h}{2830}\\\\h=713.36m](https://tex.z-dn.net/?f=sin14.6%3D%5Cfrac%7Bh%7D%7B2830%7D%5C%5C%5C%5Ch%3D713.36m)
Gravitational potential energy = 75 x 9.81 x 713.36 = 524854.62 J = 524.85 kJ
Answer:
a) conservation of the angular momentum
b) As a consequence of the interaction between particles.
Explanation:
A star is formed in a molecular cloud of gas and dust, mainly composed of hydrogen and helium. The Nebular Theory establishes, for the formation of the solar system, that the cloud starts to collapse under its own gravity when it receives a shock wave from a near event, for example, a supernova explosion. That results in the cloud breaking in small pieces, and those pieces constitute a possible future star.
Then it begins to accrete and rotate as a consequence of the angular momentum. In the center of that disk when it reaches the necessary temperature and pressure a protostar will born.
However, as the solar nebular condenses in the center due to its own gravity, the density increases, allowing more collisions between the particles that are in the nebula (atoms, free protons, etc), so the pressure rises and the temperature increases.
Answer:
no deflection
Explanation:
current is flowing from west to east. As the magnetic field of a long wire carrying current is circular, its direction will be north below the wire and south above the wire (according to the right hand rule). So, when the compass is placed underneath the wire, it will still point towards the north direction.