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Dvinal [7]
3 years ago
10

Question 8 of 10

Physics
1 answer:
Alika [10]3 years ago
6 0
B. Venus hope this helps have a great day
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A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 8 feet less than the len
SVETLANKA909090 [29]
This is the concept of application of Pythagorean theorem and algebra;
Suppose the the length of the ladder is x ft, the distance from the ground to the top of the ladder will be (x-8) ft, the distance from the bottom of the ladder to the building is 16ft, thus to find the length of the ladder we proceed as follows;
c^2=a^2+b^2
x^2=(x-8)^2+16^2
x^2=x^2-16x+64+256
collecting the like terms we get:
x^2-x^2+16x=320
16x=320
solving for x we get:
x=320/16
x=20 ft
the answer is x=20 ft


7 0
4 years ago
What capacitor in series with a 100ω resistor and a 18. 0 mh inductor will give a resonance frequency of 1000 hz?
Black_prince [1.1K]

Capacitor in series with a 100Ω resistor and a 18.0 mH inductor will give a resonance frequency of 1000 Hz is 1.38F

Resonance Frequency of a combination of Series LCR circuit is the frequency at which resonance is achieved in a circuit.

Resonance Frequency of a combination of Series LCR circuit is given by:

f = 1 / 2π\sqrt{LC\\

where, f is the resonance Resonance Frequency of a combination of  Series LCR circuit

          L is the Inductance of the inductor

          C is the capacitance of the capacitor

Given,

f = 1000Hz

L = 18.0 mH  = 0.018H

R = 100Ω

C = ?

On substituting the values in the above-mentioned formula:

1000 = 1 / 2π\sqrt{0.018C}

2π\sqrt{0.018C}     = 0.001

On solving, C = 1.38 F

Hence, the capacitance of the given capacitor is 1.38F.

Learn more about Resonant frequency here, brainly.com/question/13040523

#SPJ4

5 0
2 years ago
One astronomical unit (AU) is equal to the average distance between Earth and:
masya89 [10]
<span>One astronomical unit is equal to the average distance between the Earth and the Sun. The answer is letter B. However, the distance between the earth and the sun varies as the earth revolves around the sun. but recent discoveries have proven the exact distance. It is also equal to 149, 597, 870, 700 meters and was defined by the International Astronomical Union. </span>
7 0
4 years ago
Read 2 more answers
Which is a dopant for a p-type semiconductor? arsenic indium phosphorus antimony
erastova [34]

Answer:

As opposed to n-type semiconductors, p-type semiconductors have a larger hole concentration than electron concentration.

Explanation:

In p-type semiconductors, holes are the majority carriers and electrons are the minority carriers. A common p-type dopant for silicon is boron or gallium. hope this you :)

4 0
3 years ago
two tugboats pull a disabled supertanker. each tug exerts a constant force of 2.20×106 n , one at an angle 19.0 ∘ west of north,
asambeis [7]

The amount of work the two tugboats completed on the supertanker W = 3.12 × 10^9 joules .

Work is a physics term used to describe the energy transfer that takes place when an object is moved over a distance by an external force, at least some . The component of the force acting along the path multiplied by the length of the path can be used to calculate work if the force is constant. Mathematically, this idea is expressed as W = fd, where W is the work and f is the force multiplied by d, the distance. Work is completed when the force is applied at an angle of with respect to the displacement. Performing work on a body involves moving it in its entirety from one location to another as well as other methods.  However, the work is thought to be negative if the applied force is in opposition to the item's motion, indicating that energy is being pulled away from the object

Learn more about work here:

brainly.com/question/1374468

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7 0
1 year ago
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