1- a train travels 92 kilometers in 3 hours, and then 55 kilometers in 3 hours. what is its average speed? 2- what is the speed of a bobsled whose distance-time graph indicates that it traveled 125m in 27s? 3- suppose you increase your walking speed from 4 m/s to 15 m/s in a period of 3 s. what is your acceleration?

With these questions , 15 pts & brainliest

Player kicks a soccer ball from ground level and sends it flying at an angle of 30 degrees at a speed of 26 m/s. what is the horizontal velocity component of the ball to the nearest tenth of a m/s?

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)