What causes lightning? a. thunder c. rising warm air b. an electric discharge d. air masses meeting

A force of 1750 n is exerted on a piston that has an area f 0.010 m2. What area is required for a second piston to exert a force of 6130 n

Which statement about work and power correctly describes an automobile race? The cars do different amounts of work depending on how fast they finish. The car that finishes last has the lowest power.

What is global warming definition?

How many weeks are in the regular NFL season? Select one: a. 15 b. 18 c. 21 d. 23

The factors that can change in an experiment are called?

Which of the following objects would have the most inertia? A. A sphere with a radius of 5 cm and a mass of 34 grams. B. A sphere with a radius of 4 cm and a mass of 15 grams. C. A sphere with a radius of 8 cm and a mass of 27 grams. D.

A boy slides a book across the floor using a force of five and over a distance of 2M what is the kinetic energy of the book after he slides at assume there is no friction

Where would aliens be if they really do exist here on Earth?

If the mass of an object is 84g and the volume is 12cm3 what is the density

Describe one example of competiton of tropical dry forest