Anarrow region between two air masses of different densities is a
a. ridge.
b. system.
c. gulley.
d. front.

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

Which component of the earth’s atmosphere is decreased due to photosynthesis?