If vx = 3 meters/second and vy = 4 meters/second, what is the magnitude of the resultant velocity?
average speed = (total distance covered) / (time to cover the distance)
-- traveling at 40 mph for 1 hour, the distance covered is 40 miles.
-- traveling at 60 mph for 1 hour, the distance covered is 60 miles.
-- total distance covered = (40 miles) + (60 miles) = 100 miles
-- total time = (1 hour) + (1 hour) = 2 hours
-- average speed = (100 miles) / (2 hours)
average speed = 50 miles per hour
therefore, elements whose atoms can have the same number of valence electrons are grouped together in the periodic table of the elements. as a general rule, a main group element (except hydrogen or helium) tends to react to form a closed shell, corresponding to the electron configuration s2p6.
the kinetic energy of an object depends on its mass and its speed.
it does not depend on the object's velocity as long as its speed doesn't change, the object has the same kinetic energy no matter what direction it's moving.
here is the answer calculate the area of the base (which is a circle) by using the equation πr² where r is the radius of the circle. then, multiply the area of the base by the height of the cylinder to find the volume.