Ve scientific reasons.

It is not possible to get a perfect machine in our practice, why?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

Why is the use of carbon-14 limited

What structural formula represents 4 electrons shared between two atoms?