A phylum may be subdivided into several classes.

a. True

b. False

A constant force is applied to an object, causing the object to accelerate at 10 m/s^2. What will the acceleration be if the force is halved and the object's mass is doubled?

Describe accuracy, precision and best fit line.

Why don't you feel the pressure exerted by atmosphere?

A space probe on the surface of Mars sends a radio signal back to earth a distance of 8.66x0^7 km. Radio waves travel at the speed of light (3:00x10^8 m/s. How many seconds does it take the signal to reach earth

What does speed tell us

A crude approximation for the x component of velocity in an incompressible laminar boundary layer is a linear variation from u = 0 at the surface (y = 0) to the freestream velocity, U, at the boundary-layer edge (y = δ).

Why did dad leave mom?

Sal drew the electron dot diagram of an aluminum atom as shown. How should Sal correct his diagram? He should add five more dots so that the atom obeys the octet rule. He should add ten more dots so that all thirteen electrons are shown.

What uses electricity

How do the elements in the Noble Gas family compare?