ayudaaa urgent confio en ustedesss : ruido del motor de un auto de fórmula 1, tiene una frecuencia de 570 hz. Si un observador lo ve acercarse en la recta del circuito a 252 km/h, ¿con qué frecuencia lo percibirá? a) 647 hz b) 697 hz c) 718 hz d) ninguna

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

(1 point) match the differential equations and their vector valued function solutions. you may wish to multiply at least one solution out fully, to make sure that you know how to do it. you can get the other answers quickly by process of elimination and just multiply out one row element.

Alandscaper is shopping for landscaping materials. she wants to use materials through which water flows easily. which materials should she choose? check all that apply. clay gravel granite rocks with cracks loosely packed soil