Find the current drawn from the battery by the network of four resistors shown in the figure.

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )