In the lens equation, the variable do represents the distance of the object from what?

How do gravity and dark matter shape the galaxies and affect their environment?

What other animals are giraffes related to

Which scientists supported the idea that light is made of streams of particles? Check all that apply.

A 70 kg runner exerts a force of 35n. what is the acceleration of the runner

When electrons are removed from an atom, the atom becomes positively charged and is referred to as a (n) anion anode ocation cathode

What was the total weight (lbf) of chocolate in the vat? the specific gravity of chocolate is approximately 1.24?

You are in the lab and are given two rods set up so that the top rod is directly above the bottom one. The two straight rods 50-cm long are separated by a distance of 1.5-mm each with 15 A of current passing through them.

What is the explanation for feather beds being warm

A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 47 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 354 J?

Suppose a rocket ship in deep space moves with constant acceleration equal to 9.8 m/s2, which gives the illusion of normal gravity during the flight.