A horizontal force of 24 N is being applied to a box on a level surface. The box is accelerating at the rate of 2.0 against a frictional force of 14 N. What is the mass of the box?

Which electron transition would result in the greatest amount of energy to be absorbed? a) n = 4 to n = 1 b) n = 1 to n = 4 c) n = 2 to n = 1 d) n = 1 to n = 3 e) None of the choices are correct

What is your height in centimeters? what is your weight in Newton's

Scientist to propose one of the first models of atoms

The energy generated by the sun travels to Earth as electromagnetic waves. Because the radiation from the sun travels to Earth in varying wavelengths, scientists consider them to be a spectrum.

19. The term, The Mad as a Hatter, began in 19th century Europe because hatmakers used mercury. Mercury vapor is toxic to Inhale and causes neurological damage.

Which of the following statements are true? a. A satellite's motion is independent of its mass. b. A satellite's velocity and orbital radius are independent of each other. c. A geosynchronous satellite has a period of approximately 28 days. d.

Latent heat of vaporization refers to which changes of state? liquid to gas or gas to liquid solid to gas or gas to solid solid to liquid or gas to liquid gas to liquid or liquid to solid

In what part of the scientific method do you record data? a. Conclusion b. Experiment c. Analysis d. Hypothesis

What is the basic definition of a black hole? a. any compact mass that emits no light b. a dead star that has faded from view any object from which the escape velocity exceeds c. the speed of light any object made from dark matter d.

A system uses 2380 I of energy to do work as 12,900 j of heat are added to the system. The change in internal energy of the system is