A 50 kg girl is standing in a 300 kg rowboat and is at rest. If the girl steps out of the boat with a speed of 3m/s, what speed will the boat be pushed back with?

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

This punnett square shows the cross between two pants. one parent has round seeds (rr). and the other parent has wrinkled seeds (rr) which best describes their offspring as shown in this cross?

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.