If the relative humidity of the air is 47 nd its temperature is 68 ∘f, how many molecules of water are present in a room measuring 11 × 12 × 11 ft ?.

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Which sound characteristic is not affected by the relative motion of an object