A gun is sounded and an echo received from a wall 6 seconds later. If the speed of sound is 330m/s, how far away is the wall?

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

Which word expression describes how much to calculate pressure

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction