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
fenix001 [56]
3 years ago
13

water flows in a pipe of a terminal of A1=0.02 m2 with a speed of V1=2 m/s. At the second end of the pipe A2=0.04 m2, the speed

of flow is V2=_______m/s
Physics
1 answer:
weeeeeb [17]3 years ago
8 0
A1*V1=A2*V2
0.02*2=0.04*V2
V2=1 m/s
You might be interested in
A shell is fired with 500km/h on a target half kilometer away.In what time in which shell will hit the target.
Drupady [299]

It depends on the direction in which the shell is launched.  The time can be anything from 3.6 seconds to never.

6 0
3 years ago
A locomotive engine pulls a train with a constant force comment on whether its acceleration will increase or decrease if more co
julia-pushkina [17]

Explanation:

the acceleration will be unchanged according to newton second law of motion

7 0
3 years ago
Using Ohm’s Law, explain how resistance changes in relation to current, assuming that voltage remains constant.
Cerrena [4.2K]
V=IR so voltage is directly proportional to current. So for a given resistance increasing the voltage will result in a high current as well. This is because resistance is proportional to the voltage over the current. Ex: I=V/R
Hope this helped. THANKYOU for asking. <span />
7 0
3 years ago
Ron is on a Ferris wheel of radius 30 ft that turns counterclockwise at a rate of one revolution every 12 seconds. The lowest po
alexgriva [62]

Answer:

x = 30cos\frac{\pi}{6}t

y = 30sin\frac{\pi}{6}t + 45

Explanation:

1 full revolution is 2\pi. let \theta be the angle of Ron's position.

At t = 0. \theta = 0

one full revolution occurs in 12 sec, so his angle at t time is

\theta =2\pi \frac{t}{12} = \frac{\pi}{6}t

r is radius of circle and it is given as

x = rcos\theta

y = rsin\theta

for r = 30 sec

x = 30cos\frac{\pi}{6}t

y = 30sin\frac{\pi}{6}t

however, that is centered at (0,0) and the positioned at time t = 0 is (30,0). it is need to shift so that the start position is (30,45). it can be done by adding to y

x = 30cos\frac{\pi}{6}t

y = 30sin\frac{\pi}{6}t + 45

7 0
3 years ago
A source produces 20 crests and 20 troughs in 4 seconds. The second crest is 3 cm away from the first crest.Calculate :
sineoko [7]

Answer:

Solution given:

No of waves[N] =20crests & 20 troughs

=20waves

Time[T]=4seconds

distance[d]=3cm=0.03m

Now

<u>Wave</u><u> </u><u>length</u><u>=</u>3cm=3 × {10}^{ - 2}m

<u>Frequency</u>=\frac{No of waves}{time}

=\frac{20}{4}=5Hertz

and

Wave speed:wave length×frequency=3 × {10}^{ - 2}m×5=1.5 × {10}^{ - 1} \tt{ {ms}^{ - 1}}.

3 0
3 years ago
Other questions:
  • In a physics lab, light with wavelength 490 nm travels in air from a laser to a photocell in 17.0 ns. When a slab of glass 0.840
    7·1 answer
  • A Tennis ball falls from a height 40m above the ground the ball rebounds
    13·1 answer
  • Suppose you are playing hockey on a new-age ice surface for which there is no friction between the ice and the hockey puck. You
    5·1 answer
  • Which is an example of the gravitational force?
    9·2 answers
  • Starting from Joe's Gas Station, a car travels due north on Avenue A for 2.4 mi, then turns right and travels on Cedar Street fo
    12·1 answer
  • A rocket train car that is 30 m long is traveling from Los Angeles to New York at v=0.5c when a light at the center of the car f
    11·1 answer
  • How much energy is used when a 110kw appliance is used for 3 hours
    9·1 answer
  • What are three of Earth's spheres in which energy is transferred by convection
    13·1 answer
  • Comon help me out here
    14·1 answer
  • How far apart are two conducting plates that have an electric field strength of 4. 4 kv/m between them, if their potential diffe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!