Explanation

We are given:
A wire with resistance R = 6 Ω
It is cut into two equal parts
These two parts are then connected in parallel

Step 1:

Resistance of each half
When a wire is cut into two equal parts, the resistance of each half becomes half:
Rhalf​=6/2​=3Ω

Step 2:

Two 3 Ω resistors in parallel
Use the formula for two resistors in parallel:
Req​1​=1/3​+1/3​=2/3​

Req​=3/2​=1.5Ω

Explanation

The wavelength of the audible frequency (20 Hz to 20 kHz) audible to the human ear is approximately 17 m to 17 mm.

Bats use slightly higher frequencies, so they can solve targets smaller than 17mm.

The wavelength of audible sound is much longer than the wavelength of visible light.

Explanation

The most popular renewable energy sources currently are:

1.      Solar energy

2.      Wind energy

3.      Hydro energy

4.      Tidal energy

5.      Geothermal energy

6.      Biomass energy

Explanation

The seat of memory and intelligence in the human brain is the cerebral cortex.

the cerebrum is the part that is designated as the seat of intelligence and voluntary action control. 

while

 cerebellum is part of your brain that helps coordinate and regulate a wide range of functions and processes in both your brain and body.

NA21-8-2023

Explanation

Inverters and rectifiers are electronic circuits that can change the type of electric current.

An inverter converts DC to AC,

while

a rectifier converts AC to DC.

Explanation

Skin is the external largest organ of the human body

It is a vital organ with a fleshy surface covered with hair, nerves, glands, and nails.

It covers your whole body and acts as a barrier between the outside and the inside environment.

while 

The largest solid internal organ is the liver

Explanation

Explanation

 Osmium is a chemical element with the symbol Os and atomic number 76.

Explanation

Biological death of the patient means death of tissues of the brain.

Explanation

The minke whale, or lesser rorqual, is a species complex of baleen whale.

The two species of minke whale are the common minke whale and the Antarctic minke whale.