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
ivanzaharov [21]
3 years ago
5

A meter stick has only two forces acting on it, of equal sizes at the ends that are in opposite directions. (I have magically tu

rned gravity Off.) Is the stick in equilibrium? Explain your answer.
Physics
1 answer:
Tom [10]3 years ago
7 0

Answer:

Explanation:

Equilibrium is a state in which the algebraic sum of all forces acting on an object is zero. Thus the object has no force acting on it. The types are: stable, unstable and neutral equilibrium. While a torque is a turning force which are equal but acts in an opposite direction. When applied to on object, it constitute a turning effect. Example is the force applied on a tap, handle wheel of a car etc.

In the given question, the condition stated shows that the stick would experience a torque, thus not in equilibrium. Since the forces at its ends are in opposite directions, then it continues to rotate about its axis.

You might be interested in
Air as an ideal gas enters a diffuser operating at steady state at 5 bar, 280 K with a velocity of 510 m/s. The exit velocity is
Nataly [62]

Answer:

Explanation:

Calculating the exit temperature for K = 1.4

The value of c_p is determined via the expression:

c_p = \frac{KR}{K_1}

where ;

R = universal gas constant = \frac{8.314 \ J}{28.97 \ kg.K}

k = constant = 1.4

c_p = \frac{1.4(\frac{8.314}{28.97} )}{1.4 -1}

c_p= 1.004 \ kJ/kg.K

The derived expression from mass and energy rate balances reduce for the isothermal process of ideal gas is :

0=(h_1-h_2)+\frac{(v_1^2-v_2^2)}{2}     ------ equation(1)

we can rewrite the above equation as :

0 = c_p(T_1-T_2)+ \frac{(v_1^2-v_2^2)}{2}

T_2 =T_1+ \frac{(v_1^2-v_2^2)}{2 c_p}

where:

T_1  = 280 K \\ \\ v_1 = 510 m/s \\ \\ v_2 = 120 m/s \\ \\c_p = 1.0004 \ kJ/kg.K

T_2= 280+\frac{((510)^2-(120)^2)}{2(1.004)} *\frac{1}{10^3}

T_2 = 402.36 \ K

Thus, the exit temperature = 402.36 K

The exit pressure is determined by using the relation:\frac{T_2}{T_1} = (\frac{P_2}{P_1})^\frac{k}{k-1}

P_2=P_1(\frac{T_2}{T_1})^\frac{k}{k-1}

P_2 = 5 (\frac{402.36}{280} )^\frac{1.4}{1.4-1}

P_2 = 17.79 \ bar

Therefore, the exit pressure is 17.79 bar

7 0
3 years ago
Igneous rocks would most likely be found near:
algol [13]
Erosion and hot whether 
6 0
3 years ago
Read 2 more answers
Advantages of solid expansion​
bulgar [2K]

Answer:

One of the most useful use of expansion by heat is for swiches onmany tyes of machinery and home appliancesThemostats in the millions of cars are poerated by using the eaxpansion of metal Themometers arre another example,

5 0
3 years ago
Place these bodies of our solar system in the proper order of formation.
earnstyle [38]
The four inner planets, those closest to the Sun, are Mercury, Venus, Earth, and Mars. They are smaller and composed mainly of metals and rocks. The four outer planets — Jupiter, Saturn, Uranus, and Neptune — are larger and composed mostly of gases.
4 0
4 years ago
Read 2 more answers
Two identical soccer balls are rolled toward each other. What will be true after they collide head-on
Juliette [100K]
no because there is no chance that it will possibly hit eachother
6 0
2 years ago
Other questions:
  • On a spring scale that measures force, a reading shows the force of an object to be about halfway between 7 N and 8 N. Which of
    7·1 answer
  • A pure substance can be a ..................... (a) element (b) compound (c) either element or compound (d)none of these
    11·2 answers
  • A person standing in the middle of a long straight road sees a truck with its headlights on approaching in the distance. The tru
    6·1 answer
  • What are two causes of friction
    14·2 answers
  • Write down the time independent Schrödinger equation for the harmonic oscillator potential. Then confirm that the ground state w
    12·1 answer
  • (a) Calculate the rate of heat conduction through house walls that are 13.0 cm thick and that have an average thermal conductivi
    14·1 answer
  • A mass of M-kg rests on a frictionless ramp inclined at 30°. A string with a linear mass density of μ=0.025" kg/m" is attached t
    7·1 answer
  • A bicyclist at the top of a hit begins to coast without pedaling. The bicycle speeds up as it descends to the bottom of the hill
    9·1 answer
  • give reason Nikki is walking on the road with the load on her head. she does not work against Gravity​
    8·1 answer
  • An autographed baseball rolls off of a 0.93 m high desk and strikes the floor 0.56 m away from the desk. How fast was it rolling
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!