Find the x-component of this vector 18.4,0.250. remember, angles are measured from the +x axis. find the x-component and y-component

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s. what is the wavelength?

What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%

Macy always thought there were only a few hair colors blonde brown and black however when she actually began looking around she saw varying shades of these hair color what is a possible reason for so many different hair colors