A worker drops a wrench from the top of a tower 80m tall. What is the velocity when the

wrench strikes the ground?

An element located at the intersection of period 7 and group 2

A spherical conductor of radius 15.5 cm has net charge Q = 0.66 µC. Calculate the electric potential at the following distances from its center, assuming the electric potential goes to zero at an infinite distance from the sphere.

Which of the following correctly describes the hierarchy that exists in the universe? A galaxy refers to all existing matter, energy, and space that is held together by gravity.

average distance of 160.0 cm. Its average time was 5.74 seconds. What is its average speed?

A vector has an x-component of - 7.55m and a y-component of - 2.48. Find the magnitude of the vector

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?