How far away was the object that reflected back the sound
On a day when the speed of sound in air is 340 m/s, a bat emits a shriek whose echo reaches it .025 s later. How far away was the object that reflected back the sound?
a) 4.25 m
b).85 m
c) .425 m
d) 8.5 m
Expected delivery within 24 Hours
Determine the magnitude ratio and the phase lag for the system when subjected to a sinusoidal forcing having a 100 hz frequency. What, if anything is the problem using this system for this application.
A women a toddler pushes a chair at a constant speed with a force of 25.0N for a distance of 2.5m. How much work is the child doing on the chair?
To obtain the rate of reaction 3I- (aq) +H3AsO4(aq) +2H+(aq)->I3-(aq)+H2AsO3(aq)+H20(l) you might follow the I- concentration or the I30 concentration.
A mass is attached to a spring. It oscillates at a frequency of 1.27 Hz when displaced a distance of 2 cm from equilibrium and released. What is the maximum velocity attained by the mass?
Determine the rate of heat transfer from the bottom surface of the engine block by convection and radiation as the car travels at a velocity of 80 km/h.
A player of a video game is confronted with a series of 3 opponents and a(n) 77% probability of defeating each opponent. Assume that the results from opponents are independent (and that when the player is defeated by an opponent the game ends).
After achieving top speed, he runs the remainder of the race without speeding up or slowing down. The total race is fifty meters long. If the total race is run in 7.82 s, how far does he run during the acceleration phase?
Samples of skin experiencing desquamation are analyzed for both moisture and melanin content. The results from 100 skin samples are as follows:
1958717
Questions Asked
3,689
Active Tutors
1447680
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: "The President is the commander in chief of the army and navy." What type of power is this?
Which of the following is not likely an example of propaganda? Group of answer choices a report from a biologist about the effects of fluoride
Question: Which of the following is an example of overreach? Need Assignment Help?
Assessing how intelligence collection has influenced counterterrorism strategies. Analyze how intelligence collection has shaped
Thomas Jefferson encouraged Kentucky to declare the Alien and Sedition acts as unconstitutional and therefore void
Question: Which power of congress does Congress usually use to justify managing issues that fall outside of their normal control?
Question: According to the "Necessary and Proper Clause" of the constitution, what power does congress have?