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
Which of the following does not lead to addiction?
zloy xaker [14]

Answer:

Obesity does not lead to addiction. Obesity is a weight condition characterized by a body.

Explanation:

5 0
3 years ago
Please help me whit this question
mariarad [96]

Answer:

Gypsum

Explanation:

Gypsum is a soft sulfate mineral composed of Calcium Sulfate di-hydrate. It is widely used in composition of fertilizer. It is also known as land plaster. On adding gypsum to soil, the quality of soil is improved. It conditions the soil and adds nutrients. The properties of soil is improved. Hence, the correct answer is Gypsum.

Hope this helped:)

pls mark brainlist

6 0
3 years ago
A projectile is launched at an angle above the
gtnhenbr [62]
The first rule of vectors is that the horizontal and vertical components are separate. Disregarding air resistance, the only thing we have to worry about is gravity.

The appropriate suvat to use for the vertical component is v = u +at
I will take a to be -9.81, you may have to change it to be 10 if your qualification likes g to be 10.

v = 30 + (-9.81x2)
v = 30 - 19.62
=10.38m/s

Therefore we know that after 2.0 s the vertical component will be 10.38ms^-1, ie 10m/s as the answers given are all to 2sf.

The horizontal component is completely separate to the vertical component and since there is no air resistance, it will remain constant throughout the projectiles trajectory. Therefore it will remain at 40ms^-1.

Combining this together we get:
(1) vx=40m/s and vy=10m/s

7 0
2 years ago
for an ideal monoatomic gas, the internal energy U os due to the kinetic energy and U=3/2RT per mole.show that cv=3/2R per mole
sladkih [1.3K]

Answer:

i. Cv =3R/2

ii. Cp = 5R/2

Explanation:

i. Cv = Molar heat capacity at constant volume

Since the internal energy of the ideal monoatomic gas is U = 3/2RT and Cv = dU/dT

Differentiating U with respect to T, we have

= d(3/2RT)/dT

= 3R/2

ii. Cp - Molar heat capacity at constant pressure

Cp = Cv + R

substituting Cv into the equation, we have

Cp = 3R/2 + R

taking L.C.M

Cp = (3R + 2R)/2

Cp = 5R/2

3 0
2 years ago
A(n) 93 kg clock initially at rest on a horizontal floor requires a(n) 610 N horizontal force to set it in motion. After the clo
denpristay [2]

Answer:0.669

Explanation:

Given

mass of clock 93 kg

Initial force required to move it 610 N

After clock sets in motion it requires a force of 514 N to keep moving it with a constant velocity

Initially static friction is acting which is more than kinetic friction

thus 613 force is required to overcome static friction

\mu _smg=610

\mu _s\times 93\times 9.8=610

\mu _s=0.669

5 0
3 years ago
Other questions:
  • What are two results of animal regeneration?
    12·2 answers
  • The number of waves passing a fixed point per second is known as ______________.
    7·1 answer
  • How does light interact with the surface of a rough stone?
    7·1 answer
  • What happens when a substance undergoes a physical change?
    7·2 answers
  • Find the magnitude of the resultant of forces 6N and 8N acting at 240° to each other
    15·1 answer
  • A 60 kg gila monster on a merry go round is travelling in a circle with a radius of 3 m at a speed of 2m/s
    13·1 answer
  • . How many times higher could an astronaut jump on the Moon than on Earth if her takeoff speed is the same in both locations (gr
    9·1 answer
  • La corriente que fluye por una resistencia es
    11·1 answer
  • A train having speed of 85 km/h takes 5 hours to travel from Kerala to Karnataka. Calculate the distance between Kerala and Karn
    9·1 answer
  • Organize these by 1 being the most and 16 being the least thing and by need if you were stranded on a deserted island
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!