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
denpristay [2]
3 years ago
10

Una soga, en la que en un instante dado existen 163 N de tensión, sube verticalmente una cubeta de 12.0 kg. ¿Cuál es la acelerac

ión de la cubeta? ¿Es hacia arriba o hacia abajo?
Physics
1 answer:
Yanka [14]3 years ago
6 0

Answer:

a = 3.776\,\frac{m}{s^{2}} (hacia arriba).

Explanation:

La dirección y magnitud de la aceleración se determina a partir de la siguiente ecuación de equilibrio:

\Sigma F = T - m\cdot g = m\cdot a

La expresión de la aceleración es:

a = \frac{T}{m} - g

a = \frac{163\,N}{12\,kg}-9.807\,\frac{m}{s^{2}}

a = 3.776\,\frac{m}{s^{2}}

La cubeta es acelerada hacia arriba.

You might be interested in
One method of determining the location of the center of gravity of a person is to weigh the person as he/she lies on a board of
andrey2020 [161]

Answer:

x = 1.018 m

Explanation:

given,

height of man = 190 cm

                       = 1.9 m

scale reading on left = 450 N

scale reading on the right = 390 N

Let center of gravity of man be x distance from feet, feet is on right side.

For system to be in equilibrium moment about center should be equal to zero.

∑M = 0

now,

450(1.9 - x ) - 390 × x = 0

450(1.9 - x ) = 390 × x

855 - 450 x = 390 x

840 x = 855

 x = \dfrac{855}{840}

 x = 1.018 m

hence, point of center of gravity from feet is equal to x = 1.018 m

7 0
4 years ago
Is mixture an example of water
Evgesh-ka [11]
No I don't believe so
7 0
3 years ago
Read 2 more answers
Which statement describes the relationship of resistance and current
slavikrds [6]

This is picture describe as

More current mean less resistance

Less resistance mean more current

6 0
3 years ago
You are approaching a railroad crossing with no warning devices and are unable to see 400 feet down the tracks in one direction.
azamat

Answer: The speed limit is 15 mph when you come within 100 feet of a railroad crossing and you cannot see the tracks for 400 feet in both directions. You may go faster than 15 mph if the crossing is controlled by gates, a warning signal, or a flagman.

Explanation: hope this helps

4 0
2 years ago
Read 2 more answers
A gas expands at a constant pressure of 3 atm from a volume of 0.02 cubic meters to 0.10 cubic meters. In the process it experie
Nonamiya [84]

a) 2.4\cdot 10^4 J

For a gas transformation occuring at a constant pressure, the work done by the gas is given by

W=p(V_f -V_i)

where

p is the gas pressure

V_f is the final volume of the gas

V_i is the initial volume

For the gas in the problem,

p=3 atm = 3\cdot 1.013\cdot 10^5 Pa = 3.039\cdot 10^5 Pa is the pressure

V_i = 0.02 m^2 is the initial volume

V_f = 0.10 m^3 is the final volume

Substituting,

W=(3.039\cdot 10^5 Pa)(0.10 m^3-0.02m^2)=24312 J = 2.4\cdot 10^4 J

b) 3.24\cdot 10^5 J

The heat absorbed by the gas can be found by using the 1st law of thermodynamics:

\Delta U = Q-W

where

\Delta U is the change in internal energy of the gas

Q is the heat absorbed

W is the work done

Here we have

\Delta U = 3.0\cdot 10^5 J

W=2.4\cdot 10^4 J

So we can solve the equation to find Q:

Q=\Delta U + W = 3.0\cdot 10^5 J +2.4\cdot 10^4 J = 3.24\cdot 10^5 J

And this process is an isobaric process (=at constant pressure).

8 0
3 years ago
Other questions:
  • Calculate the average charge on arginine when ph=9.20. (hint : find the average charge for each ionizable group and sum these to
    12·1 answer
  • Technician A says that disc brakes are self adjusting and the brake pedal height should not become lower as the disc brake pads
    6·1 answer
  • A force of 115n is used to move a chair 0.8m. how much work is done?
    13·2 answers
  • Sonar is used to map the ocean floor. if an ultrasonic signal is received 3.3 s after it is emitted, how deep is the ocean floor
    6·1 answer
  • Two identical beakers are both equally filled with a liquid. Beaker A contains water. Beaker B contains a liquid that is denser
    14·1 answer
  • A cube has a density of 1800 kg/m3 while at rest in the laboratory. What is the cube's density as measured by an experimenter in
    12·1 answer
  • Chemical energy is energy that
    14·1 answer
  • Planetary nebulae are characterized by an emission spectrum consisting of Balmer (hydrogen) emission lines and a pair of strong
    11·1 answer
  • How many elements have been discovered so far?​
    5·2 answers
  • If i weigh 100 ibs on earth how much do i weight on uranus
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!