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
Airida [17]
3 years ago
13

Hogden is conducting an experiment to determine how much force it takes for a nail to puncture a tire, causing a flat. He uses f

ive identical nails and tests them on five identical tires filled with equal amounts of air. He hits each nail one time, applying a different force each time. His results are recorded below. Trial Force (lbs) Result nail 1 15.0 no flat nail 2 30.0 no flat nail 3 45.0 no flat nail 4 60.0 flat nail 5 75.0 flat What can Hogden conclude from his results? A. It takes exactly 60.0 pounds of force on the nail to cause a flat. B. It takes exactly 45.0 pounds of force on the nail to cause a flat. C. It takes between 60.0 and 75.0 pounds of force on the nail to cause a flat. D. It takes between 45.0 and 60.0 pounds of force on the nail to cause a flat.
Engineering
2 answers:
SashulF [63]3 years ago
8 0

Answer:

B

Explanation:

soldi70 [24.7K]3 years ago
7 0

Answer:

D. It takes between 45.0 and 60.0 pounds of force on the nail to cause a flat.

Explanation:

Did the Study Island.

You might be interested in
A woodcutter wishes to cause the tree trunk to fall uphill, even though the trunk is leaning downhill. With the aid of the winch
Sedbober [7]

Answer:

The correct answer will be "400.4 N". The further explanation is given below.

Explanation:

The given values are:

Mass of truck,

m = 600 kg

g = 9.8 m/s²

On equating torques at the point O,

⇒  T\times Cos(10+5)\times (1.3+4)=mg\times Sin(5)\times 4

So that,

On putting the values, we get

⇒  T\times Cos(15^{\circ})\times 5.3=600\times 9.8\times Sin(5^{\circ})\times 4

⇒                             T=400.4 \ N

8 0
3 years ago
What are the mechanical properties of a geotextile that are of most importance when using it as a separator in an unpaved road s
Alekssandra [29.7K]

hey thanks for the point's i really needed them.. Cheers!

adhrtftgHDSRFDdhrgdrgfsdhrgfa

6 0
3 years ago
What does snow fall from?
Klio2033 [76]

Answer:

Clouds

Explanation:

It is created by trapped dust and water.

4 0
3 years ago
Which allows a user to run applications on a computing device? Group of answer choices Application software CSS Operating system
sveticcg [70]

Answer:

The operating system

Explanation:

The job of the operating system is to manage system resources allowing the abstraction of the hardware, providing a simple user interface for the user.  The operating system is also responsible for handling application's access to system resources.

For this purpose, the operating system allows a user to run applications on their computing device.

Cheers.

4 0
3 years ago
An insulated, vertical piston-cylinder device initially contains 10kg of water, 6kg of which is in the vapor phase. The mass of
Alexeev081 [22]

Answer:

a)120C

b)29kg

Explanation:

Hello!

To solve this exercise follow the steps below

1. we will call 1 the initial state, 2 the steam that enters and 3 the final state

2. We find the quality of the initial state, dividing the mass of steam by the total mass.

q1=\frac{6kg}{10kg} =0.6

3 Find the internal energy in the three states using thermodynamic tables

note:Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)  

through prior knowledge of two other properties such as pressure and temperature.  

u1=IntEnergy(Water;x=0,6(quality);P=200kPa) =1719KJ/kg

u2=IntEnergy(Water;t=350;P=5000kPa) =2808KJ/kg

u3=IntEnergy(Water;x=1;P=200kPa) =2529KJ/kg

4. use the internal energy and pressure to find the temperature in state 3, using thermodynamic tables

T3=Temperature(Water;P=200kPa;u=u3=2529KJ/kg)=120C

5. Use the first law of thermodynamics in the system, it states that the initial energy in a system must be equal to the final

m1u1+m2u2=(m1+m2)u3

where

m1=inital mass=10kg

m2=the mass of the steam that has entered.

solve for m2

(m1)(u1-u3)=(m2)(u3)-(m2)(u2)

m2=m1\frac{u1-u3}{u3-u2} =10\frac{1719-2529}{2529-2808} =29kg

7 0
3 years ago
Other questions:
  • Dr. Thermo, only has one bottle of neon. However, he needs to run two experiments, each requiring its own bottle. Therefore, he
    13·1 answer
  • Why research and development in Maintenance Engineering?
    6·1 answer
  • (10 points) A single crystal in the titanium cable is oriented so that the [001] direction is parallel to the applied load. If t
    14·1 answer
  • A thick steel slab ( 7800 kg/m3, 480 J/kg·K, 50 W/m·K) is initially at 300°C and is cooled by water jets impinging on one of its
    14·2 answers
  • 5) A 80-kg man has a total foot imprint area of 480 cm2. Determine the pressure this man exerts on the ground if (a) he stands o
    5·1 answer
  • At the inlet to the combustor of a supersonic combustion ramjet (or scramjet), the flow Mach number is supersonic. For a fuel-ai
    12·1 answer
  • What are probiotic bacteria and how did Danino and his team use this type of bacteria to detect liver cancer?
    15·1 answer
  • What ic engine for mechanic
    15·1 answer
  • Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    9·1 answer
  • A jackhammer uses pressurize gas to change it forced to the hammer what type of mechanical system is it a jackhammer it uses in
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!