Find intensity at spot that is at given distance from sound
Suppose that sound is emitted uniformly in all directions by a public address system. The intensity at a location 25 m away from the sound source is 3.00 10-4 W/m2. What is the intensity at a spot that is 70 m away?
Now Priced at $5 (50% Discount)
Recommended (91%)
Rated (4.3/5)
A 50-N force is the only force a 2-kg crate that starts from rest. At the instant the object has gone 2m the rate at which the force is doing work is: (answer is in Watts)
A pion decays into a muon and a neeutrino. In the rest frame of the pion, the muon always has a speed of .507c. If a beam of pions is moving at 0.600c, what will be the speed of the muons in the lab fram if the muon is emitted traveling in the dir
Suppose that the speed of light in a vacuum were one million times smaller than its actual value: c = 3.00 x 102 m/s. The spring constant of a spring is 640 N/m. Determine how far you would have to compress the spring from its equilibrium length in
A wooden shelter has walls constructed of wooden planks 1.00 cm thick. If the exterior temperature is -20.0°C and the interior is 5.00°C, find the rate of energy loss through a wall that has dimensions 1.85 m by 2.10 m.
The intensity at a location 25 m away from the sound source is 3.00 10-4 W/m2. What is the intensity at a spot that is 70 m away?
In a standing wave pattern the distance between the second and the seventh nodes is 5cm. If the frequency is 300 Hz, find the wavelength and the speed of the wave.
A jetliner has a mass of 1.1 x 105 kg and flies at a speed of 120 m/s. (a) Find the value of its momentum. (b) If the speed of light in a vacuum had a hypothetical value of 150 m/s, what would be the magnitude of the jetliner's momentum?
Suppose you are a management consultant and a client asks you the advantages and disadvantages of using standard costs in cost accounting systems. Prepare your response, listing the advantages and disadvantages of using standard costs.
A positive 2.0-mC charge moves at a speed of 2.9 * 106 m/s perpendicular to both fields. Determine the magnitude and direction of the net force on the charge.
1950919
Questions Asked
3,689
Active Tutors
1452059
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
What types of unconscious or implicit bias might be present? How could they shape people's actions, decisions, or access to resources?
Identify factors that lead to poor performance in STEM by most schools. How can INSET programs be used to improve teacher's pedagody in STEM?
In this week's video, what stood out the most to me was how clearly research separates what "looks helpful" from what actually works.
Problem: Re-word but keep the same content - Social pedagogy is evident in schools through a strong focus on relationships,
Describe a social condition in your community or the community of someone you know. How did that social condition motivate active citizens to exercise
Please provide a response with APA citations and references to "When we talk about stigma related to people with psychological disorders
Communication, creativity and decision-making skills are essential to daily life. In this course, you learned about the development of language