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Q: What is the speed of a plane that travels at a rate of 420 mph against a wind of r mph?
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What speed occurs when an object travels at a steady rate for a period of time?

Constant speed.


An airplane flies at a rate of 356 km If the plane travels a total distance of 1424 km how long was it in the air?

356 kilometres is a distance, not a speed. Therefore, the two units are incompatible.


What speed occurs when an object travels at a steady rate with the same instantaneous speed for some period of time?

Constant Speed


What is the simple subject of this sentence A rocket travels at an amazing rate of speed for great distances?

A rocket


What is the speed of a cheetah that travels a total of 112 meters in 4 seconds?

Distance = Rate * Timeso,Rate(speed) = Distance/Time= 112 meters/4 seconds= 28 meters/second


What is the rate in miles per hour of a plane that travels 478 in 3 hours?

159.3333 mph (the digit 3 repeats indefinitely)


What is the velocity of a plane traveling nothwest at 610 mph?

Velocity is the rate of speed in a given direction. Therefore, the plane's velocity is 610mph NW.


If a person travels for 244 km at an average speed of eighty km how long will this journey take?

This question is invalid. The speed needs to be a rate, not a measurement.


How far will an airplane travel before takeoff if the plane can accelerate uniformly at a rate of 2.45 meters per second to its takeoff speed of 70 meters per second?

The first step is to find out how long the airplane took before takeoff. If it travels at a uniform 2.45ms-2 acceleration and needs to get to 70ms-1 then this will take 70/2.45 = 28.57142857... seconds. The next step is to calculate the average speed. The plane starts at 0 and ends at 70, so the average speed will be 35ms-1. To find the distance travelled, we multiply the average speed (35) by the time taken (28.57142857...) and this gives 1,000. Thus, the plane travels for 1km before takeoff.


What is the rate in miles per hour of a plane that travels 1680 miles in 3 hours?

1,680/3 = 560 miles per hour


What are components of speed?

This isn't really a computer-related question but speedis the rate at which something travels at a given interval of time.


What is the speed of a car that travels 200 miles in 4 hours?

Distance = Rate * Time or, for our purposes, Rate = Distance/Time Rate = 200 miles/4 hours = 50 miles per hour ==============