Answer:
Q = 189000 [J]
Explanation:
The internal energy or heat can be calculated by means of the following expression.
where:
Q = internal energy or heat [J]
m = mass = 15 [kg]
Cp = 840 [J/kg*°C]
DT = temperature change = 15 [°C]
![Q = 15*840*15\\Q = 189000 [J]](https://tex.z-dn.net/?f=Q%20%3D%2015%2A840%2A15%5C%5CQ%20%3D%20189000%20%5BJ%5D)
The planets from strongest magnetic field to weakest magnetic field is Jupiter > Earth > Venus.
Magnetic fields are generated by the movement of magnetic material located in side the planet, usually at the core.
Jupiter, the biggest planet in our planetary system, likewise has the biggest magnetic field, producing a magnetosphere bigger than the Sun. It`s magnetic field is created by its fast rotation of 9.8 Earth hours. Dissimilar to Earth, Jupiter`s magnetic field is not produced by its core yet by interaction in its external core, which comprises of liquid metallic hydrogen.
Earth's magnetic field is produced by liquid metal at the center and Earth's fast pivot of 24 hours creates enough movement of the liquid to animate a magnetic field. While Venus does not have a magnetic field, likely on account of it's slow rate at around 243 Earth days, it's as yet shielded from sun oriented breezes utilizing an alternate kind of magnetism.
Therefore, the Jupiter have magnetic fields much stronger than that of the Earth and Venus.
Answer:A
Explanation: search for a gap in traffic and adjust your speed to the speed of the traffic.
When material stuff is free to move, it moves away from stronger force on it to weaker force on it. OK ? Now take it to the next step: When material stuff is free to flow ... like liquid or gas ... it flows from higher pressure to lower pressure. That's what makes wind, and that's why water comes out of a garden hose when you open the nozzle. It doesn't amaze you at all when you INCREASE the pressure at one end of the straw (blow into it), and air moves DOWN and out of it. So it shouldn't bother you that when you DECREASE the pressure at your end, anything that's free to flow UP the straw will do that.
