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
Darina [25.2K]
3 years ago
11

For a polymer that was maintained at constant strain, an initial stress of 2.76 MPa decreases to 1.72 MPa after 6 hr. Estimate t

he stress remaining after 30 hr.
Physics
1 answer:
DedPeter [7]3 years ago
5 0

Answer:

1.48 Mpa

Explanation:

Given that For a polymer that was maintained at constant strain, an initial stress of 2.76 MPa decreases to 1.72 MPa after 6 hr. To estimate the stress remaining after 30 hr, we must first find the decay constant by using the exponential equation.

Therefore, the estimate of the stress remaining after 30 hr, is 1.48Mpa.

Please find the attached file for the solution.

You might be interested in
A physical science test book has a mass of 2.2 kg what is the weight on mars??? please help
Nastasia [14]
Weight = (mass) x (gravity)
             = (2.2 kg) x (3.7 m/s^2)

             = 8.1 newtons. (about 1.84 pounds)
4 0
3 years ago
The circuit contains a filament bulb, connected with ........ to a ........
Katyanochek1 [597]

Answer:

The circuit contains a filament bulb, connected with terminal to a terminal.

Explanation:

The base of the electric bulb and the metal tip of the base are the two terminals of the bulb. One is called a positive terminal while the other is called a negative terminal. The filament of the electric bulb is connected to its terminals.

8 0
3 years ago
Earth's gravity accelerates objects at 9.8 m/s2. When the flying object reaches the top of its arc (even if it is not pictured),
otez555 [7]
The motion of falling objects is the simplest and most common example of motion with changing velocity. The early pioneers of physics had a correct intuition that the way things drop was a message directly from Nature herself about how the universe worked. Other examples seem less likely to have deep significance. A walking person who speeds up is making a conscious choice. If one stretch of a river flows more rapidly than another, it may be only because the channel is narrower there, which is just an accident of the local geography. But there is something impressively consistent, universal, and inexorable about the way things fall.
3 0
3 years ago
Read 2 more answers
When a ball player throws a ball straight up, by how much does the speed of the ball decrease each second while ascending?
Alexxandr [17]
-9.8 m/s^s because thats the earth gravity so it will lose 9.8 m/s^2 until its stop and thats because its the opposite of the force towards the earth!
Hope it helps
6 0
3 years ago
As mass increases does potential energy decrease or increase?
timurjin [86]
The equation for potential energy is = mgh (m stands for mass, g stands for gravitational acceleration, and h stands for height)
So if mass increases, it will also increase potential energy
8 0
4 years ago
Other questions:
  • The steel pipe AB has a 102-mm outer diameter and a 6-mm wall thickness. Knowing that arm CD is rigidly attached to the pipe, de
    12·1 answer
  • Which type of uninterruptible power supply uses AC power to continuously charge its battery, while also providing power to devic
    15·1 answer
  • Round each of the following to 3 significant figures.
    10·1 answer
  • A tetrahedron has an equilateral triangle base with 25.0-cm-long edges and three equilateral triangle sides. The base is paralle
    8·1 answer
  • I don't know what the answer is please help ...
    15·1 answer
  • You throw a Frisbee of mass m and radius r so that it is spinning about a horizontal axis perpendicular to the plane of the Fris
    11·1 answer
  • A 10 kg computer accelerates at a rate of 5 m/s2. How much force was applied to the computer?​
    13·2 answers
  • I need help with this i don’t understand
    10·1 answer
  • Convection currents will transfer heat throughout a gas until what condition arises?
    6·2 answers
  • Because sound waves vibrate longitudinally, what can result?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!