A chinese book has the first written record of medical knowledge to solving crime in a description of how to distinguish between strangulation and drowning.

What happens to an electron when energy is added?

Bob and John are pulling in different directions. If Bob is pulling to the right with a force of 10N, and John is pulling to the left with a force of 12N What is the net force acting on the box?

What does it mean to say that a quantity is conserved

In the theory of plate tectonics, various segments of Earths crust, called plates, move toward and away from each other.

The amount of force needed to sustain motion of a rock in outer space is

a roller coaster is hard to stop because it has a lot of inertia. Use Newton's first law of motion to explain why you feel tossed around whenever a roller coaster goes over a hill and through a loop.

Is balancing an egg on the equinox science or pseudoscience

What does a speedometer measure? A. Average speed B. Acceleration C. Speed D. Velocity

How does increasing the amount of charge on an object affect the electric force it exerts on another charged object?

A diffraction grating is illuminated simultaneously with red light of wavelength 670 nm and light of an unknown wavelength. The fifth-order maximum of the unknown wavelength exactly overlaps the third-order maximum of the red light.