Water leaves a hose at a rate of 3.6-kg per 2.5-s with a speed of 20.5-m/s and is aimed at a toy car at the exact moment the car is hit the water slows down to 3.1-m/s (That is, we ignore any splashing back.)
What is the force exerted by the water on the toy car?

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.

Select the correct answer. what does the process of natural selection involve?

On average 8 bananas make up one pound. the price is four pounds for 5.00. you must buy 25 bananas.what is your cost?