Answer:
Explanation:
The free body diagrams of each box are presented in the images attached below. Given the smoothness of the level floor, friction forces can be neglected and due to the contact (3rd Newton's Law) betweeen each other, both boxes experiment the same acceleration:
Box A
Box B
After some algebraic manipulation:
The acceleration experiment for each box is:
The contact between the two boxes is:
Answer:
Hi Emily, I know you from school.
Explanation:
You're in my class. 2024 am i right
Answer:
Explanation:
The intensity of a sound wave is given by
where
P is the power of the wave at the source
A is the area over which the sound wave propagates
In this problem, we have
P = 70.0 W is the power
We want to know the intensity at a distance of r = 25.0 m from the orchestra, so since the sound waves propagates radially, we must consider a spherical surface of radius r, so the area is
Therefore, the intensity of the wave is
<span>1.50 x 3.00 = V x 1.00 atm ( Boyle's law)
V = 1.50 x 3.00 / 1.00 = 4.50 L </span>
A golf ball less resistance-smaller object