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
frozen [14]
3 years ago
15

The timing device in an automobile's intermittent wiper system is based on an RC time constant and utilizes a 0.520 µF capacitor

and a variable resistor. Over what range (in MΩ) must R be made to vary to achieve time constants from 2.50 to 19.0 s?
Physics
1 answer:
GarryVolchara [31]3 years ago
6 0

Answer:

Range of R is from 4.81MΩ to 36.54 MΩ

Explanation:

Capacitance(C) = 0.520 µF = 0.52 x 10^(-6) F

Time constant = from 2.5 to 19 seconds

In RC circuits, time constant is;

r = RC

Where R is the range (in MΩ)

And r is time constant

Thus,

R = r/c

So minimum range will be at 2.5seconds.

Thus; Rmin = 2.5/(0.52 x 10^(-6)) = 4.81 x 10^(6) Ω = 4.81MΩ

Rmax = 19/(0.52 x 10^(-6)) = 36.54 x 10^(6) Ω = 36.54 MΩ

You might be interested in
An electric motor converts electrical energy into (blank) energy
Delicious77 [7]

Answer:

Mechanical

Explanation:

5 0
3 years ago
The accepted value for the density of iron is 7.87 g/cm3. a student records the mass of a 20.00 cm3 block of iron as 153.8 grams
dangina [55]
The density of an object can be calculated using the formula Density = Mass/Volume.

Experimental Density:

Density = 153.8g / 20.00 cm^3
Density = 7.69g/cm^3

Percent error equation:

% Error = | Theoretical Value - Experimental Value|/Theoretical Value * 100
% Error = | 7.87g/cm^3 - 7.69g/cm^3|/7.87g/cm^3 * 100
% Error = 2.29%

Therefore a is the correct answer.
6 0
3 years ago
Hello I need some help.Two guys enetr in a room,a guy come from outside(there is cold)and another guy come from a room(there is
slavikrds [6]
I would feel warm because putting cold and hot together is gonna be warm because with the cold it is cooling down the hot to make warm
5 0
3 years ago
The stress force that causes a mass of rock to pull or twist in opposite directions in called ______.
Ilya [14]
The stress force that causes a mass of rock to pull or twist in opposite directions in called shearing. Shearing forces<span> are unaligned </span>forces<span> pushing one part of a body in one direction, and another part of the body in the opposite direction. Hope this answers the question.</span>
4 0
3 years ago
Read 2 more answers
A thin, horizontal rod with length l and mass M pivots about a vertical axis at one end. A force with constant magnitude F is ap
katen-ka-za [31]

Answer:

The magnitude of the angular acceleration is α = (3 * F)/(M * L)

Explanation:

using the equation of torque to the bar on the pivot, we have to:

τ = I * α, where

I = moment of inertia

α = angular acceleration

τ = torque

The moment of inertia is equal to:

I = (M * L^2)/3

Also torque is equal to:

τ = F * L

Replacing:

I * α = F * L

α = (F * L)/I = (F * L)/((M * L^2)/3) = (3 * F)/(M * L)

8 0
3 years ago
Other questions:
  • A bird flies 10 miles south, turns and flies 15 miles east. What distance did it fly.
    6·1 answer
  • Rapid energy transfer between ____ and ____ energy make roller coasters thrilling
    6·1 answer
  • Who was the decline in the anchovy of peru blamed on
    8·1 answer
  • The arrows in the chart below represent phase transitions.
    14·1 answer
  • In the theory of plate tectonics, various segments of Earths crust, called plates, move toward and away from each other. In one
    6·1 answer
  • Explain how you know that gasoline burning in a car engine is a chemical change.?
    7·2 answers
  • What is the Index of refraction of a material of the speed of light in that materials is 2.251 x 10^8 m/s ? Use 3.00 x 10^8 m/s
    12·1 answer
  • A jetliner is moving at a speed of 245m/s. The vertical component of the plane's velocity is 40.6 m/s. Determine the magnitude o
    11·1 answer
  • A marching band consists of rows of musicians walking in straight, even lines. When a marching band performs in an event, such a
    9·1 answer
  • Help plz i have until 4.20 plz
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!