a microbiologist measures the speed of a swimming bacterium. the bacterium covers a distance of 6.82 microns in 3.5 seconds. the biologist wished to compare the speed of the bacteria with other animals, but the speeds of other animals are listed in kilometers per hour. what is the speed of the bacterium in kilometers per hour? use scientific notation and express your answer to the correct number of significant figures. you must show your work for full credit.

What is the approximate amplitude of this wave a.10 seconds b.15 centimeters c.30 centimeters d.15 seconds

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.