Napisz równania dwóch fal płaskich (opis zespolony), które mają takie same częstotliwości. Dobierz parametry fal tak, aby jedna amplituda była dwa razy większa od drugiej. Kierunki propagacji fal są różne. Wyznacz amplitudę zespoloną jednej wybranej fali w podanym przez siebie punkcie przestrzeni. Współrzędne punktu muszą spełniać warunek x≠y≠z. Zapisz wszystkie niezbędne jednostki.

The primary benefit of taking into account a child's interests while selecting exercise activities is that the child will a. play more willing with others b. succeed at their favorite activity c. allow parents to relax afterwards d. gain motivation to exercise select the best answer from the choices provided.

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.