Explanation

Aerosol cans are typically made of metal (aluminum or steel).

It often contain recycled content, usually over 25%.

These containers are recyclable.

Explanation

 The moment of inertia of a solid sphere is (2/5)MR^2, where M is the mass and R is the radius.

This formula applies when the axis of rotation passes through the center of the sphere. 

Explanation

A fuse is a thin wire that melts and breaks the circuit if too much current flows, protecting appliances.

It acts as a safety device to prevent damage from overheating or short circuits.

Explanation

Explanation

Balanced forces are equal in magnitude but act in opposite directions, resulting in no net force (Newton's First Law).

The individual forces have opposite directions, even though their effects cancel out.

Explanation

Explanation

Solar cells, also known as photovoltaic cells, convert solar energy (sunlight) directly into electrical energy.

They work by using semiconductor materials to absorb photons from sunlight and release electrons, generating electricity.

Explanation

Steel, being a solid metal, is measured by weight.

The standard unit for measuring steel is kilograms or tons, depending on the quantity.

Explanation

Heat is a form of energy, specifically thermal energy, which is transferred from one body to another due to a temperature difference.

It is a type of kinetic energy, where the particles of a substance vibrate or move rapidly, generating heat.

Explanation

The total resistance (R) in the series circuit is:

R = 5 + 10 + 10

= 25 Ω

The current (I) is given by Ohm's law:

I = V/R

= 50V / 25Ω

= 2A