Examlex
Waves of amplitude 1.3 cm move along a 14-m long string that has a mass of 90 g and is under a tension of 18 N.If the average total energy of the waves in the string is 5 J,calculate the frequency of the waves.
Retroviruses
A group of RNA viruses that insert a DNA copy of their genome into the host cell in order to replicate, like HIV.
Reverse Transcriptase
An enzyme used by retroviruses to transcribe their RNA into DNA, which allows viral integration into the host genome.
Host Genome
The complete set of genetic information within an organism that serves as a host for another organism or entity, such as a virus.
Antigenic Drift
A mechanism of variation in viruses that causes small changes in the virus particles over time, leading to new strains that may escape immune recognition.
Q2: The temperature of the air on a
Q10: What is the escape speed from
Q31: The graph shows a wave moving
Q40: A design project requires you to construct
Q47: A wheel is rotating freely with an
Q49: Two wave trains travel on a string
Q63: If the absolute temperature of a gas
Q89: The pressure of a mass of
Q91: An ideal gas undergoes a cyclic process
Q96: Sound travels at 340 m/s in air