When String A is played with String B, it creates a 3.0 Hz beat frequency. When String A is played with String C, it creates a 3.0 Hz beat frequency. If you play String B and C together, what beat frequency will they make? (There are two possible answers; give one.)

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) ! : )

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

Acar of mass 800kg is moving at a speed of 2.2m/s.