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
Stels [109]
3 years ago
9

Hi I'm trying to build a desk that moves up and down electrically but i need help

Engineering
1 answer:
gladu [14]3 years ago
6 0
There are tons of standing desks that you can buy that already do that. Might be where you want to look.
You might be interested in
A system consists of N very weakly interacting particles at a temperature T sufficiently high so that classical statistical mech
algol [13]

Answer:

the restoring force is = 3/4NKT

Explanation:

check the attached files for answer.

7 0
3 years ago
What are the three elementary parts of a vibrating system?
zhenek [66]

Answer:

the three part are mass, spring, damping

Explanation:

vibrating system consist of three elementary system namely

1) Mass - it is a rigid body due to which system experience vibration and kinetic energy due to vibration is directly proportional to velocity of the body.

2) Spring -  the part that has elasticity and help to hold mass

3) Damping - this part considered to have zero mass and  zero elasticity.

7 0
3 years ago
A PMMA plate with a 25 mm (width) x 6.5 mm (thickness) cross-section has a contained crack of length 2c = 0.5 mm in the center o
victus00 [196]

Answer:

LAOD = 6669.86 N

Explanation:

Given data:

width= 25 mm = 25\times 10^{-3} m

thickness = 6.5 mm = 6.5\times 10^{-3} m

crack length 2c = 0.5 mm at centre of specimen

\sigma _{applied} =  1000 N/cross sectional area

stress intensity factor  =  k  will be

\sigma_{applied} = \frac{1000}{25\times 10^{-3}\times 6.5\times 10^{-3}}

                   = 6.154\times 10^{6} Pa

we know that

k =\sigma_{applied} (\sqrt{\pi C})

  =6.154\sqrt{\pi (2.5\times 10^{-04})}          [c =0.5/2 = 2.5*10^{-4}]

K = 0.1724 Mpa m^{1/2} for 1000 load

ifK_C = 1.15 Mpa m^{1/2} then load will be

Kc = \sigma _{frac}(\sqrt{\pi C})

1.15 MPa = \sigma _{frac}\times \sqrt{\pi (2.5\times 10^{-04})}

\sigma _{frac} = 41.04 MPa

load = \sigma _{frac}\times Area

load = 41.04 \times 10^6 \times 25\times 10^{-3}\times 6.5\times 10^{-3} N

LAOD = 6669.86 N

3 0
3 years ago
You can assume there is no pressure drop between the exit of the compressor and the entrance of the turbine. All the power from
Eddi Din [679]

Answer:

s6rt5x11j4fgu

j4

cf53yhu5

y4

hh

Explanation:

j

6 0
3 years ago
Give me source code of Simple openGL project. ( without 3D or Animation) simple just.
Ivan

Answer:

Use GitHub or stackoverflow for this answer

Explanation:

It helps with programming a lot

4 0
3 years ago
Other questions:
  • A food-services company with a 480 V, three-phase service entrance has the following set of loads:  A 7 ton walk-in refrigerati
    13·1 answer
  • write an interface downloadable that has a method "geturl" that returns the url of a downloadable object
    5·1 answer
  • An analog baseband audio signal with a bandwidth of 4kHz is transmitted through a transmission channel with additive white noise
    14·1 answer
  • 1)A wheel is used to turn a valve stem on a water valve. If the wheel radius is 1 foot and the stem, (axle), radius is .5 inches
    10·1 answer
  • Given two alphabet strings str1 and str2. You can change the characters in str1 to any alphabet characters in order to transform
    8·1 answer
  • You are hired as the investigators to identify the root cause and describe what should have occurred based on the following info
    9·1 answer
  • According to the article, what is one reason why commercial carmakers aim to develop driverless technology?
    9·1 answer
  • The difference between an initial condition and a boundary condition for conduction in a solid is:___________
    9·1 answer
  • A spherical metal ball of radius r_0 is heated in an oven to a temperature of T_1 throughout and is then taken out of the oven a
    6·1 answer
  • From the top of a vertical cliff 80m high, the angles of depression of 2 buoys lying due west of the cliff are 23° and 15° respe
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!