If you yell in a canyon on a day when the temperature is 35C and you hear the echo 1.7 seconds later, how far away is the canyon wall? Show how you determine the answer. Use details to support your answer.

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?