Suppose you're on a hot air balloon ride, carrying a buzzer that emits a sound of frequency f. if you accidentally drop the buzzer over the side while the balloon is rising at constant speed, what can you conclude about the sound you hear as the buzzer falls toward the ground?
a. the frequency remains the same, but the intensity decreases
b. the frequency decreases and the intensity increases
c. the frequency and intensity increase
d. the frequency decreases and the intensity decreases

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm

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.

The amount of potential energy possessed by an elevated object is equal to what?