John is running around the field. His first lap took 30 seconds to complete and he slowed down his pace during his second lap, which took him 45 seconds. If the distance of one round of field is 200m, calculate the acceleration of John.

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.

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction

Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion