Does work output exceed work input when a machine is used? A) Yes, it does, as machines create energy. B) It depends on the type of machine used. C) No, it doesn't, as machines are inefficient. D) No, it doesn't, as machines cannot create energy.

Good Afternoon my son has a science project the category is Physical science can you'll give me science Ideas he can do I'm New to this

Which one of the following is NOT among the characteristics of light gauge steel frames? A. Thermally inferior in itself. B. Susceptible to decay and termites. C. Dimensional stability unaffected by humidity. D.

A 0.250 kg toy truck is rolling across the floor at a rate of 1.25 m/s. It is pushed by your sister with a force of 0.5 N over 2.2 s in the same direction of travel. What is its new velocity when she lets go to watch it?

Which tool is a wheel and axle?

What word means very destructive

How long does it take for light to travel from the sun to earth?

Two very small spheres are initially neutral and separated by a distance of 0.30 m. Suppose that 2.50 1013 electrons are removed from one sphere and placed on the other. (a) What is the magnitude of the electrostatic force that acts on each sphere?

Why is it important to balance a chemical equation? A. It is not important to balance a chemical equal B. To make sure you have the correct products C. To make sure you have the correct reactants D. To obey the law of conservation of mass

The presence of icicles hanging off the eaves of a wood-framed structure is most likely due to: heavy snow followed by a thaw. improper insulation in wall cavities. use of a poor-quality roof sheathing material. lack of proper roof ventilation.

Both gravitational potential energy and kinetic energy depend on