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
leonid [27]
3 years ago
13

While rowing across a lake, John does 3960 ft-lbs of work over 120 ft. How much force is John using?

Engineering
1 answer:
Ivanshal [37]3 years ago
6 0

66W. Explanation: Formula of Power: Worktimetaken. Given: Work = 3960J and time taken = 60.0s. Using the formula: Worktimetaken. = 3960J60.0s. = 66W.

You might be interested in
If you get a flat in the front of your car, your car will:
juin [17]

Answer:

stop and might even crash

Explanation:

6 0
3 years ago
Technicians have to determine the flow rate of water in a pipe with the aid of a venturi installation and a mercury au.oaeter. T
Schach [20]

Answer:

Manometric difference x=142.85 mm.

Explanation:

Given :

 Pipe diameter d_1=40 mm

venturi meter d_2=20 mm

We can know that discharge through venturi meter is given as

Q=C_d\dfrac{A_1A_2\sqrt{2gh}}{\sqrt {A_1^2-A_2^2}}

A_1=1.24\times 10^{-3},A_2=3.12\times 10^{-4}

Q=A_1V_1

Q=1.24\times 10^{-3}\times 1.5=0.00186 m^3/s

0.00186=0.97\dfrac{1.24\times 10^{-3}\times 3.12\times 10^{-4} \sqrt{2gh}}{\sqrt {(1.24\times 10^{-3})^2-(3.12\times 10^{-4})^2}}

h=1.8 m

We know that h=x\left (\dfrac{\rho_{hg}}{\rho_w}-1\right )

Where x is the manometric deflection

⇒ 1.8=x\left (\dfrac{13600}{1000}-1\right )

So x=14.28 mm

Manometric difference x=142.85 mm.

7 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
enyata [817]

Answer:

Check image, right on PLATO

Explanation:

7 0
3 years ago
In an aligned and continuous carbon fiber-reinforced nylon 6,6 composite, the fibers are to carry 97% of a load applied in the l
Juli2301 [7.4K]

Answer:

a) 0.26

b) 1077 MPa

Explanation:

a) The following equation can be used to determine the volume fraction:

\frac{F_f}{F_m} =\frac{E_fV_f}{E_m(1-V_f)}

\frac{0.97}{1-0.97} =\frac{260V_f}{2.8(1-V_f)}

32.3 = \frac{260V_f}{2.8-2.8V_f}

V_f = 0.26

b) Tensile strength can be found by using the following equation:

\sigma_{cl} = \sigma_m(1-V_f)+\sigma_fV_f = 50*(1-0.26)+4000*0.26 = 1077 MPa

5 0
4 years ago
What are the assumptions made for air standard cycle analysis?
diamong [38]
D i took this hope it helps
4 0
3 years ago
Other questions:
  • Some characteristics of clay products such as (a) density, (b) firing distortion, (c) strength, (d) corrosion resistance, and (e
    15·1 answer
  • All of the following statements are true EXCEPT: A) air should be let out of a tire when it is hot. B) each change in outside te
    11·1 answer
  • Determine ten different beam loading values that will be used in lab to end load a cantilever beam using weights. Load values sh
    7·1 answer
  • Believing that 70% of her body is composed of water, and 20% is composed of denser materials (bones, teeth, etc.) with a specifi
    5·1 answer
  • What is a "gob" as described in the glass making process?
    9·1 answer
  • (TCO 1) Name one disadvantage of fixed-configuration switches over modular switches. a. Ease of management b. Port security b. F
    6·1 answer
  • The stream function for a certain incompressible flow field is given by the expression ψ = −Ur sinθ+qθ=2π. Obtain an expres- sio
    5·2 answers
  • A 0.9% solution of NaCl is considered isotonic to mammalian cells. what molar concentration is this?
    10·1 answer
  • Which one is an example of a digital input?
    5·1 answer
  • Which type of fires should you fight with a portable fire<br> extinguisher?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!