Calculate the force at sea level that a boy of mass 50 kg exerts on a chair in which he is sitting.

A typical carbon atom has six protons, six neutrons, and six electrons. Which of these has the least amount of mass? A) one Proton B) one Neutron C) six Electrons D) These masses are too tiny to measure

In which direction does current go according to the electron flow convention?

Ocean Currents: List two ways currents affect life on earth.

Sarah is asked to sort out the list of ions and ionic compounds. How can Sarah differentiate between the ions and ionic compounds?

Which of the steps below is not imporant for wellness

Which describes a property shared by ultraviolet light and X-rays? A They are both transverse waves. B They share the same wavelength. C They contain less energy than visible light. D They both require a medium to travel through.

What is the potential energy called that is associated with objects that can be stretched

Which of the following is not a current use of radioisotopes? medical diagnosis sterilization of equipment detection of leaks in building structures light fixtures

A Blu-ray disc is approximately 11 centimeters in diameter. The drive motor of a Blu-ray player is able to rotate up to 10,000 revolutions per minute. (a) Find the maximum angular speed (in radians per second) of a Blu-ray disc as it rotates

A body has translatory motion if it moves along a