Example: In a reverberation room whose volume is 150 m3 and surface area is 190 m2, the reverberation time at 500 Hz is 6.9 s when empty. When a specimen wall of 12 m2 area is installed in the room, the reverberation time is 3.4 s. Find the absorption coefficient of the wall at 500 Hz.

Q: The density of Venus is similar to that of Earth. The mass of Venus is 4. and its diameter is 12,100…

A: For the given  Mass = 4.9 X 1024 kg  Diameter = 12100 km  The density of venus is

Q: A sawn lumber column with a 5.5 x 5.5-in. cross section has an 11-ft effective length. Knowing for…

A: solution We will use the allowable stress equation for wood to design the column i.e to determine…

Q: A droplet has a mass of 2.9 x 10-13kg and a charge of +e. In what vertical electric field would the…

A:

Q: . A mass of 1 kg is attached to the end of a spring whose restoring force is 180 The mass is in a…

A:

Q: 1) A 15.10-kg object oscillates at the end of a vertical spring with a velocity V = 0.45 m/s. The…

A: Answer:----.                 Date:----18/10/2021

Q: A cylindrical tank filled with water has height h and a baseof area A. Water leaks through a hole in…

A:

Q: A 6600/400 V, 50 Hz, single phase transformer has a net cross -sectional area of the core of 428…

A: The number of turns in the primary and secondary windings.

Q: A 10-meter section of a busy downtown sidewalk is actually the platform of a scale that produces a…

A: The final answer is Explanation:Step 1: c) step-by-step explanation:1. Initial State : The sidewalk…

Q: 2. A rectangular lot is bounded on one side by a concrete wall. The owner wishes to put up fences on…

A:

Q: F = 3 x 10-4³-4.4 x 10-³w²+3.93w+0.221

A: Given :

Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.