Answer:
A burning candle. (chemical energy into energy of heat and light, i.e. thermal and wave)
Explanation:
Answer:
The Earth's magnetism is generated in the core, which is composed of iron that is constantly churning
Explanation:
Magnetic fields are produced by charges in motion, therefore by currents.
The outer core of the Earth consists mainly of melted iron that is in constant motion. This iron in motion actually acts as a giant current, and therefore it is responsible for the creation of the Earth's magnetic field.
The magnetic field of the Earth is very weak, in fact its magnitude is on average between 25 and 65 microtesla (for comparison, normal magnets can even produce magnetic fields of a few millitesla).
However, its role is very important for the Earth: in fact, it provides a shield that blocks most of the harmful radiation coming from the Sun.
The answer is; metamorphic
Occurs when igneous and sedimentary rocks are subjected to extreme temperatures and pressure such that their chemical composition changes. Examples of metamorphic rocks are; marble (that metamorphoses from limestone rock), quartzite (from sandstone). Other types of metamorphic rock include gneiss and schist.
Answer:
Force, F = 622.28 N
Explanation:
It is given that,
Torque, 
Angle between force and displacement, 
Distance, d = 25 cm = 0.25 m
We need to find the force required to produce the torque. Torque produced by an object is given by :
F is force required to produce torque
So, applied force is 622.28 N.
