A hiker walked 2 blocks North, 1 block West, 3 blocks South, and 3 blocks East. What was the hiker's displacement and total distance?

As the electron moves, does the electric potential energy of the system increase, decrease, or stay the same?

A molecule that moves across a cell membrane without using the cell's energy tends to move A. away from the area of equilibrium. B. away from the area where it is less concentrated. C. away from the area where it is more concentrated. D.

1) Air modeled as an ideal gas enters a well-insulated diffuser operating at steady state at 270 K with a velocity of 180 m/s and exits with a velocity of 48.4 m/s. For negligible potential energy effects, determine the exit temperature, in K.

Match: Substance ... Definition Lewis base A. Provides H in water Bronsted-Lowry base B. Provides OH - in water Arrhenius acid C. Proton donor D. Proton acceptor E. Electron pair donor F. Electron pair acceptor

What can engineers do to prevent structures from collapsing during earthquakes

Since you've determined that the power supply is a 700W dual rail, what does that make the maximum output power?

A 2 m length of an aluminum pipe of 240 mm outer diameter and 10 mm wall thickness is used as a short column to carry a 640? centric axial load. Knowing that? = 73? P? and? = 0.

A python can detect thermal radiation from objects that differ in temperature from their environment as long as the received intensity of thermal radiation is greater than 0.60 W/m2. Your body emits a good deal of thermal radiation.

A planet has a mass of about 6.4 x 1023 kg, and its moon has a mass of about 9.6 x 1015 kg. if the magnitude of the gravitational force between the two bodies is 4.6 x 1015 n, how far apart are the planet and its moon? a. 9.4 x 106 c. 4.6 x 109 b. 2.

Is burning a nonrenewable natural gas a chemical change