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Lerok [7]
3 years ago
8

An oceanic depth-sounding vessel (sonar) surveys the ocean bottom with ultrasonic sound that travels at an average of 1522m/s. H

ow deep is the water if the time delay of the echo from the ocean floor is 2.0s?
Physics
1 answer:
ad-work [718]3 years ago
4 0

Answer: 2 sec means 1 sec each way

1522 m/s x 1 s = 1522 m

Explanation:

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mafiozo [28]
--vertical from ground to top--
v^2 = u^2 + 2as
with v= 0, a=g, s=u^2/(-2g)
g on the moon is 1/6
u is equal, then it goes 6 times higher on the moon.

v = u + at
with v= 0, a=g, t = u/(-g)
g on the moon is 1/6
u is equal, then it takes 6 times longer on the moon.

--horizontal--
s = vt , v is equal
t on the moon is 6 time longer
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3 0
3 years ago
30 points plz help ill do anything... literally anything.
ruslelena [56]

Answer:

1. 2.5s

Explanation:

1. For time, divide Distance / speed

25m / 10

=2.5s

3 0
3 years ago
Momentum
puteri [66]

Answer:

get egg and try to make in not crack when it falls by exerting the momentum of the fall into something other than the egg ex. make a box full of bubble wrap and put your egg in it

Explanation:

8 0
3 years ago
A worker pushes a 1080 N crate with a horizontal force of 345 N a distance of 14 m. Assume the coefficient of kinetic frictin be
amm1812

Answer:

The work done by the worker on the crate is 4830 J.

Explanation:

Given that,

Force = 1080 N

Horizontal force = 345 N

Distance d = 14 m

Coefficient of friction = 0.22

We need to calculate the work done

Using formula of work done

W = Fd

F = force

d = distance

Put the value into the formula

W=345\times14

W=4830\ J

Hence, The work done by the worker on the crate is 4830 J.

3 0
3 years ago
Read 2 more answers
[1 mark]
Sidana [21]

Answer:

D. 24.0m

Explanation:

formula

S=d/t

s=speed

d=distance

t=time

s=3.0m/s

d=x

t=8.0s

s=d/t

d=s*t

d=3.0*8.0

d=24.0m

8 0
3 years ago
Read 2 more answers
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