Some molecules move with speed of 2.76 miles per hour. What is this speed in cm/s? (1 mile = 1609 m)

123.383 centimeters per second.

Step-by-step explanation

1 mile per hour is equal to 44.704 centimeters per hour

therefore 2.76 miles per hour to centimeters per second will be calculated by multiplying 2.76 miles per hour by 44.704 to get 123.383 centimeters per second.

or

1 mile is equal to 160934 centimeters.2.76 miles is therefore,160934 multiplied by 2.76 to get 444,177.84

an hour is equal to 3600 seconds. therefore to get the the distance covered in one second at this speed you divide total number of centimeters by 3600 seconds.

444.177.84/3600 =123.383