Solar panels allow us to harness energy and convert it to energy to heat water.

1. chemical; thermal
2. electromagnetic; thermal
3. solar; chemical
4. thermal; electromagnetic

2. electromagnetic; thermal

Explanation:

Electromagnetic energy is emitted by any body that has a temperature above absolute zero. For this reason, the entire body with a temperature above 276 degrees negative can be considered as a source of electromagnetic energy. The two main natural sources of electromagnetic energy are the Sun and the Earth.

A good example of the use of electromagnetic energy is that associated with solar energy, that is, making use of solar panels to collect energy from the Sun and thus use it to generate electricity. The use of solar panels has the main advantage of producing clean and renewable energy. In addition, the electromagnetic energy from the Sun can also be used to capture energy for satellites and also other devices that are in space and cannot make use of fossil fuels. In summary, we can say that solar panels are systems that convert electromagnetic energy into thermal energy.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

prndulum needs thread, weight clock to time swings