When a pitch is high, what is true about the wavelength of the sound wave? there's no way to determine this
the wavelength is the same for all types of waves
the wavelength is long
the wavelength is short

Are aliens real? justify you’re answer.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

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.