An aircraft has a mass of 3.30 x 105 kg. at a certain instant during its landing, its speed is 45.2 m/s. if the braking force is 3.30 x 105 n, what is the speed of the airplane 12.1 s later?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

Determine the maximum r-value of the polar equation r =3+3 cos 0