hmoney217 hmoney217
  • 21-11-2022
  • Physics
contestada

sonar is used to determine the speed of an object. a 40.0-khz signal is sent out, and a 42.0-khz signal is returned. if the speed of sound is 345 m/s, how fast is the object moving?

Respuesta :

Otras preguntas

I am factor of 48, I am bigger than 4 square. I am smaller than 5. WHAT IS THE MYSTERY NUMBER
A ball falls, rebounds to 72% of its previous height and falls again. After two bounces, the ball reached a height of 25cm. From what height was the ball droppe
Multiply and simplify(5a + 2bc) (5a - 2bc)
Which refers to an injury to a joint?a. osteoporosisb. bursitisc. scoliosisd. carpal tunnel syndrome
how much interest will you get on $800 investment for 1 year at 6.45% ?
how many days are really in a year
After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope?
After decaying for 48 hours, l/16 of the original mass of a radioisotope sample remains unchanged. What is the half-life of this radioisotope?
A 1200 kg vehicle initially travelling at 50. km/h experiences an air resistance of 5000 N and road friction of 2200 N. The wheels deliver a force of 7500 N to
who makes the most computers