The element copper has 29 protons. What is the atomic number of copper?

A bumper has a non negligible mass. After a collision with an ideal spring, the spring is compressed to a distance of 90% of the value of its distance when the bumper's mass was negligible. Give a reasonable explanation for this decrease.

A 3.00 kg particle has a velocity of (3.02 - 4.10 m/s.

Explain why most metals sink in water

Who was the first president of kenya

Which of the following is an example of rotation A. The moon titan orbiting the planet saturn B. A cyclist riding around a circular track C. The planet saturn orbiting the sun D. Earth spinning on its axis

Two cups of the same size are filled to the brim with clear liquids. Cup A holds water. Cup B contains alcohol. Your teacher challenges you to figure out which cup holds water.

What is a scientific theory? A law that is always true a hypothesis about nature and educated guess based on observations an explanation on how the natural world works?

How does weathering affect statues?

What is the distance between ground to the lowest clouds?

Which of these is a risk of speeding A. Longer braking distance B. Greater likelihood of being distracted C. Tire damage D. Mechanical failure