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
meriva
2 years ago
15

5) A parallel series electric blasting circuit consists of 6 branches of 8 caps each. Cap legwire length is 28 ft. The cap circu

it is connected by 50 ft total length of No. 16 gauge bus wire. The lead wires are No. 14 gauge 1,000 ft long one-way. Find the minimum dc current and voltage required to safely fire this blast under current leakage conditions.
Physics
1 answer:
andrezito [222]2 years ago
4 0

Answer:

Minimum DC current = 9 Ampere

Voltage = 74.862 V

Explanation:

Here in this questions three resistors are used in series

Resistance of cap circuit

R_1 =\frac{ 8* 2.3}{6} \\R_1 = 3.067

Here 2.3 is the resistance per cap

Resistance of bus wire

R_2 = \frac{50 * 4.02 }{1000} \\R_2 = 0.201

Where 4.02 is the resistance per 1000 feet of bus wire of gauge 16

Resistance of firing line

R_3 = \frac{(2*1000)* 2.525}{1000} \\R_3 = 5.05

where 2.525 is the resistance per 1000 feet of bus wire of gauge 14

Total resistance is equal to

R = R_1 + R_2 + R_3\\R = 3.067 + 0.201 + 5.05 \\R = 8.318

Current in firing line is equal to

1.5 * 6\\= 9

Voltage is equal to product of resistance and current

= 9 * 8.318\\= 74.862

You might be interested in
1) A net force of 75.5 N is applied horizontally to slide a 225 kg crate across the floor.
dimulka [17.4K]

Answer:

The acceleration of the crate is 0.3356\,\frac{m}{s^2}

Explanation:

Recall the formula that relates force,mass and acceleration from newton's second law;

F=m\,a

Then in our case, we know the force applied and we know the mass of the crate, so we can solve for the acceleration as shown below:

F=m\,a\\75.5\,N=225\,\,kg\,\,a\\a=\frac{75.5}{225} \,\frac{m}{s^2} \\a=0.3356\,\,\frac{m}{s^2}

7 0
2 years ago
What is the relationship between the size of a predator population and the size of a prey population
Contact [7]
<span>Let's put it this way. Say you have a killer-whale and a penguin. Killer-whales are major predators to penguins. Now, say the killer-whale population increases. The penguins would be eaten more by the killer-whales, then causing a population decrease for the penguins. If the population decreases, they're won't be enough penguins, and they most likely will become extinct, as well as causing a population decrease for the killer-whales as well. Whereas, vis versa, they're were a killer-whale population decrease. The penguins would be less hunted, therefore, creating a population increase for the penguins.</span>
3 0
3 years ago
How is tidal energy obtained
yKpoI14uk [10]
Under water turbans that are placed at the above to middle of the ocean they are used to capture kinetic motion
7 0
3 years ago
Consider two uniform solid spheres where both have the same diameter, but one has twice the mass of the other. how much larger i
egoroff_w [7]
<span>The moment of inertia of the large sphere will be twice that of the smaller sphere.
   The formula for the moment of inertia for a solid sphere is:
 I = (2/5)mr^2
 where
 I = moment of inertia
 m = mass
  r = radius

   Since both spheres have the same diameter, they also have the same radius, so the only change is their mass. And the moment of inertia is directly proportional to their mass as shown by the above formula. So the sphere with twice the mass will have twice the moment of inertia, or 2 times.</span>
5 0
3 years ago
To properly operate the laboratory thermometer Group of answer choices it needs to be shaken but make sure you have enough room
ruslelena [56]

Answer:

it needs to be shaken but make sure you have enough room to shake it safely

Explanation:

To properly operate the laboratory thermometer  it needs to be shaken but make sure you have enough room to shake it safely. This done because there is a small bend in the mercury channel of a clinical thermometer that uses mercury. You must shake the thermometer to get the mercury from a previous reading from the thermometer back into the bulb for taking new reading. The bend prevents flow back into the tube so that one can comfortably take reading.

5 0
3 years ago
Other questions:
  • A typical stellar spectrum (a plot of intensity versus wavelength) includes a number of deep indentations in which the intensity
    11·1 answer
  • How does the force due to gravity on Mars compare to the force due to gravity on Earth? , and Using Newton's Second Law, explain
    11·1 answer
  • What is pressure? A)Shown in picture B)Shown in picture C)Shown in picture D)Shown in picture
    14·1 answer
  • Which statement most accurately describes the second law of thermodynamics?
    12·1 answer
  • This table shows the mass and volume of four different objects.
    13·2 answers
  • Rahul is carrying a load of 80 kg a distance of 200m in 5 minutes but the same lord is carried by Reena to the same distance in
    9·1 answer
  • 6. The electric force between two charged objects is influenced by
    13·1 answer
  • Calculate the total momentum of the three-sphere system if the three spheres are swung at −1.0 msto the left.
    8·1 answer
  • All objects are either ___________ or ___________. Charged objects can have a ____________ or _____________ charge. Uncharged ob
    5·1 answer
  • Please help me
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!