1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ladessa [460]
3 years ago
12

An ocean fishing boat is drifting just above a school of tuna on a foggy day. Without warning, an engine backfire occurs on anot

her boat 1.0 km away. How much time elapses before the backfire is heard by the fish (a)
Physics
1 answer:
otez555 [7]3 years ago
3 0

Answer:

0.641 seconds

Explanation:

Distance (d) = 1.0 km

Using the relation :

Speed = distance / time

Time = distance / speed

Speed of sound in seawater is about 1560 m/s

Distance = 1.0km =

1km = 1000m

Time = 1000 / 1560

Time = 0.6410256

Time = 0.641 s

You might be interested in
Describe the proton gradient generated by the electron transport chain
Oksana_A [137]

Answer:

The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP.

Explanation:

4 0
3 years ago
A lens of focal length 10.0 cm
fgiga [73]

Answer:

30cm

Explanation:

7 0
2 years ago
Why does a rolling sphere slows down?​
Iteru [2.4K]
There’s frictional force acting on the sphere, which causes it to gradually slow down, and eventually come to a stop.
4 0
3 years ago
If you ride your bike 20 miles and it takes you 120 minutes,what is your average speed
Alexus [3.1K]
120 minutes=2 hours
20/2= 10mph
5 0
3 years ago
A satellite’s velocity is 30000m/s. After 60 secs, it’s velocity shows to 15000m/a. What is the satellite’s acceleration?
Orlov [11]

Answer:

Acceleration = 9 × 10^5 m/s^2 ( deceleration )

Explanation:

From the first equation of motion:

V = u + at

15000 = 30000 + 60a

a = ( 15000-30000)/60

a = 9 × 10^5 m/s^2

4 0
2 years ago
Other questions:
  • Which of Newton's Laws explains why satellites need very little fuel to stay in orbit?
    6·1 answer
  • Determine a formula for the magnitude of the force F exerted on the large block (Mc) so that the mass Ma does not move relative
    14·1 answer
  • The graph below plots four main sequence stars according to their luminosity and temperature.
    10·2 answers
  • HELP NEEDED PLEASE
    11·1 answer
  • Which circuit component is usually a device that uses electrical energy to to perform a certain function? A. wire B. power sourc
    11·2 answers
  • What is the amplitude of a wave related to
    13·1 answer
  • An electric flux of 147 N*m^2/C passes through a flat horizontal surface that has an area of 0.824 m^2. The flux is due to a uni
    11·1 answer
  • A straight bar magnet is initially 4 cm long, with the north pole on the right and the south pole on the left. if you cut the ma
    14·1 answer
  • All of the following describe the motion of an object except
    13·1 answer
  • 1. Two vectors have magnitudes 6 & 8 units, respectively. Find the maximum &
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!