What is the velocity of a plane that traveled 400,000 meters from San Antonio to McAllen in 2,000 seconds. Your

200 m/s

200 m/s South

0.005 m/s

800,000,000 m/s

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?