A container ship left the Dania Pier and traveled toward St. Vincent. An aircraft carrier left six hours later traveling 9 km/h faster in an effort to catch up to it. After four hours the aircraft carrier finally caught up. Find the container ship's average speed.

6 km/hr

Step-by-step explanation:

Let and be the average speed and the time of travel of the container ship, and and be the average speed and the time of travel of the aircraft carrier.

As the aircraft carrier left 6 hours later traveling 9 km/h faster in an effort to catch up to it and after 4 hours the aircraft carrier finally caught up.

hr

and hr

As the distance covered by both is same, so

km/hr

Hence, the speed of the container ship is 6 km/hr.

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

current in the circuit at time t is /, then the power delivered to the resistor is

step-by-step explanation: