How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted?

In physics science, a push or a pull is called a

What do all group 2 elements have in common? They all gain two electrons to form a stable outer energy level. They form covalent bonds with halogens. They all react easily with the noble gases. They tend to form ionic bonds by losing electrons

After the pendulum is dropped, determine the height at which the kinetic energy is equal to the potential energy.

A box is released from rest and allowed to slide down a ramp with friction. Which statement most accurately describes the energy transformations during this motion? a) The box's initial kinetic energy is transformed into potential energy.

A scientist performs an experiment on an unknown element. She finds that the element forms an ionic bond with beryllium (Be) but not with lithium (Li). She concludes that the unknown element must belong in group 2 of the periodic table.

What happens to the force of gravitational attraction if the distance between two objects increase?

How are molecules in a neutral state different from ions?

What is a hypothesis for why mitochondrion has separate dna from the nuclease?

An airplane flies 1350km in 2 1/4 hours. What is its average speed in kilometers per hour?

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.