Reprezentați toate forțele care acționează asupra a doua carti suprapuse care se deplasează pe o suprafață orizontală sub acțiunea unei forțe de tracțiune orizontală spre dreapta ce actionează asupra catii de jos

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?