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
dusya [7]
3 years ago
12

How much current must be applied across a 60 Ω light bulb filament in order for it to consume 55 W of power? Unserious answers w

ill be deleted, and reported. (Please show some work)
Physics
1 answer:
sergij07 [2.7K]3 years ago
4 0

Answer: current I = 0.96 Ampere

Explanation:

Given that the

Resistance R = 60 Ω 

Power = 55 W

Power is the product of current and voltage. That is

P = IV ...... (1)

But voltage V = IR. From ohms law.

Substitutes V in equation (1) power is now

P = I^2R

Substitute the above parameters into the formula to get current I

55 = 60 × I^2

Make I^2 the subject of formula

I^2 = 55/60

I^2 = 0.92

I = sqr(0.92)

I = 0.957 A

Therefore, 0.96 A current must be applied.

You might be interested in
Drawing a shows a displacement vector (450.0 m along the y axis). In this x, y coordinate system the scalar components are Ax 0
Alisiya [41]

Answer:

x ’= 368.61 m,  y ’= 258.11 m

Explanation:

To solve this problem we must find the projections of the point on the new vectors of the rotated system  θ = 35º

            x’= R cos 35

            y’= R sin 35

           

The modulus vector can be found using the Pythagorean theorem

            R² = x² + y²

            R = 450 m

we calculate

            x ’= 450 cos 35

            x ’= 368.61 m

            y ’= 450 sin 35

            y ’= 258.11 m

4 0
3 years ago
How high is an object lifted if the total work done on it is 125 J and the force required to lift the object is 25 N? Use the eq
mixas84 [53]
The answer would be C. 5m
This is because to find d, you would need to divide W (125 J) by F (25 N).
Hope this helps!
8 0
3 years ago
How far does a car travel in 0.75 h if it is moving at a constant speed of 88 km/h?
Novay_Z [31]
V=d/t
88 km/h = distance/ .75 h .       multiply .75 by both side
66 km
Hope it helps
3 0
3 years ago
Read 2 more answers
an oculist charges 30 for an eye exam, frames and glasses lenses, but 42 for an eye examination, frames, and plastic lenses. If
vaieri [72.5K]

Using algebra to solve for the the cost of the glass lenses gives the value for cost of glass lenses to be 4.

<h3>What is the cost of the glass lenses?</h3>

The cost of the glass lenses is calculated as follows:

Let cost of glass be y

Cost of plastic lenses = 4y

Cost of eye exam and  frames be z.

z + y = 30  (i)

z + 4y = 42 (ii)

(ii) - (i)

3y = 12

y = 4

Inconclusion, the cost of the glass lenses is 4.

Learn more about cost at: brainly.com/question/1153322

#SPJ1

7 0
2 years ago
What are the three types of mechanical waves?
Black_prince [1.1K]

Answer:

I'm sure its transverse, longitudinal and surface

Explanation:

sorry if I'm wrong

4 0
2 years ago
Other questions:
  • A +2.00nc point charge is at the origin, and a second -5.00nc point charge is on the x-axis at x = 0.800m find the magnitude of
    14·1 answer
  • Name the four major forces in the universe that act over long distance as I greater than the nucleus of an atom?
    11·1 answer
  • Express 9/15 as a percentage
    5·2 answers
  • A truck is traveling north and a car is traveling west calculate momentum
    10·1 answer
  • Is stretching before working out important?
    14·2 answers
  • A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 118 km
    9·1 answer
  • Please helpers! I wrote the first questions answer but from there i didnt know how to calculate.
    13·1 answer
  • A horizontal applied force of magnitude 25 N acts on a block sliding on a horizontal surface. The force of friction between the
    8·1 answer
  • An object with a mass of 7kg gains the speed 26 meters per second after traveling the distance 2.8m. Calculate the resulting for
    13·1 answer
  • You guys bad news... i failed nnn :c
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!