Does the uphill or downhill direction matter to the speed of the marble, or is the height the only contributing variable? a. uphill is fastest b. downhill is fastest c. height is the only contributing variable. d. none of these factors affect speed.

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) ! : )

Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.

With physics question #5? for any !