Which material would be best to design a heater: cork, aluminum, wood, or soil?

Which of the following statements is true? 1) On a level surface, normal force equals weight. 2) The more inertia an object has, the more easily it will change its motion. 3) The more massive an object, the more quickly it will accelerate.

If only some of the light that hits an object is reflected, predict what might happen to the rest of the light.

Juan roller skates with a constant speed of 20km/h. How long will he take to travel a distance of 70 kilometers?

If one side of switch is open and another one closed so what gone happen

A kelvin temperature equivalent to 30c is

A mass spectrometer accelerates doubly ionized atoms of charge 2e over a potential difference V before they enter a uniform magnetic field B which is perpendicular to the direction of motion of the ions.

A rotating water pump works by taking water in at one side of a rotating wheel, and expelling it from the other side. If a pump with a radius of 0.120 m starts from rest and accelerates at 30.

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