1- The tire of the airplane is inflated at sea level to 60 psi. Assuming the tine does not expand, what is the pressure within the tire at elevation of 40,000 ft. Assume standard atmosphere. Express the answer in psig and psia.

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

If two parallel light rays hit a mirror, they will not be parallel to each other after they reflect.