Some strongly electric fish will stun prey by generating an electric current that runs

along the outside of their skin. What must be true about the electric charges on the

fish's skin when the fish is stunning its prey?

Choose the situation below in which the force applied is the greatest. A) Steve put in 50 J of work moving a box 50 meters. B) Doing 400 J of work, Penny pushed her cat 80 meters.

How does distance affect force when the amount of work remains the same? A) As distance increases the amount of force needed increases. B) As distance decreased the amount of force needed decreases.

A force of 1.200*103 N pushes a man on a bicycle forward. Air resistance pushes against him with a force of 615 N. If he starts from rest and is on a level road, what speed? will he be going after 25.0 m?

Which one of the following is NOT a simple machine? A. Wheel and axle. B. Inclined Plane. C. Lever. D. Bicycle

The science of applying pascals principal is called

Water, with a density of rho = 1145 kg/m 3, flows in a horizontal pipe. In one segment of the pipe, the flow speed is v 1 = 7.33 m/s. In a second segment, the flow speed is v 2 = 1.57 m/s.

What does the color of a star determine

Scientific cosmology Choose one: A. investigates the overall structure and history of the Universe. B. pertains to legends and verbal history about the beginnings of the Universe. C. proves the Big Bang theory. D.

Which statement best describes longitudinal waves? A) Particles of the wave medium move perpendicular to the direction of propagation of the wave. B) Longitudinal waves do not require a material medium for propagation.

Three-fourths of the Earth's surface is covered by water. The water cycle includes these water sources evaporating and returning to Earth as rain and snow.