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Two students are provided with a starting pistol, a stopwatch and a long measuring tape. The starting pistol produces a loud sound and a puff of smoke. Describe how the students use the apparatus to calculate the speed of sound.

The students stand at a distance of 200 m from each other (measured with the measuring tape). Student 1 fires the pistol, Student 2 starts the stopwatch when they see smoke from the pistol and stop it whe...

Answered by Josh M. • Physics tutor

14148 Views

Describe the role of a ribosome in the production of a polypeptide

mRNA from the nucleus binds to a ribosome which is either free in the cytoplasm or associated with the rough ER. The ribosome binds at the 5' end and scans to the start codon (AUG). The ribosome allows tR...

Answered by Josh M. • Biology tutor

7815 Views

What are the key structural differences between a eukaryotic and prokaryotic cell?

Eukaryotic Cells- Eukaryotic cells are multicellular and more complex- Contain membrane bound organelles, so this includes a nucleus, which contains the genetic material as chromos...

Answered by Adam A. • Biology tutor

5674 Views

Integrate 3t^2 + 7t with respect to t, between 1 and three.

To integrate you add one to the power and divide by the new power, so this becomes:3t³/3 + 7t²/2 simplifying to t³+ 7/2 t²If we were just performing indefinite...

Answered by Josh M. • Maths tutor

3252 Views