The steel plate is 0.3 m thick and has a density of 7850 kg>m3 . determine the location of its center of mass. also find the

The intensity of the sound increases because sound waves are mechanical waves, meaning they cannot move through a vacuum and require a medium to propagate.

Answer:

The acceleration of the platform is - 1.8 m/s²

Explanation:

The net force on a body causes that body to accelerate in the direction of the resultant force applied.

Setting up the force equilibrium for the configuration:

ma = 800 - mg

100a = 800 - 100×9.8

100a = - 180

100a = - 180

a = - 1.8 m/s²

This indicates that the body is falling downward.

Applying the formula of force equals mass times acceleration, and considering acceleration approximated as g at 10 m/s², the brick possessing the greater mass will hit the ground first due to its superior force that counteracts resistive forces like air resistance.

Answer:

Momentum is expressed as p = 7.2 g-m/s

Explanation:

It is given that,

The momentum of the object is

We need to represent momentum in alternative equivalent units. There are various solutions to this issue. For instance, mass units can be represented in grams, milligrams, etc., and length can be in meters, millimeters, etc.

Since, 1 kg = 1000 grams

Thus,

Therefore, the momentum of the object is 7.2 g-m/s. This is the solution needed.