A scientist is measuring the period of a sound wave. Which instrument is she most likely to use?
A:stopwatch
B: ruler
C:compass
D: protractor

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

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) ! : )