Un corredor hace los 400 metros lisos en 50 seg. Calcula la velocidad en la carrera.

the speed in the race is 8 meters per second

Explanation:

The computation of the speed in the race is shown below:

We know that

Distance = speed × time

where

Distance is 400 meters

And, the time is 50 seconds

So, the speed is

400 = speed × 50 seconds

the speed is 8 meters per second

Hence, the speed in the race is 8 meters per second

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas