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
IgorLugansk [536]
3 years ago
8

What quantities determine the resistance of a piece of material? Choose all that apply.

Physics
1 answer:
bija089 [108]3 years ago
7 0

Answer:

Option (a), (b) and (c)

Explanation:

The resistance of a conductor depends on the length of the conductor, area of crossection of the conductor and the nature of the conductor.

The formula for the resistance is given by

R = ρ x l / A

Where, ρ is the resistivity of the conductor, l be the length of the conductor and A be the area of crossection of the conductor.

So, It depends on the length, area and the type of material.

You might be interested in
17. _______ is a fuel produced by fermenting crops.
DENIUS [597]
Fuel is produced by fermenting Ethanol
6 0
3 years ago
An apparatus similar to the one used in lab uses an oscillating motor at one end to vibrate a long rope with frequency f = 40 Hz
Mice21 [21]

Answer:

The displacement in t = 0,  

y (0) = - 0.18 m

Explanation:

Given f = 40 Hz , A = 0.25m , μ = 0.02 kg / m, T = 20.48 N

v = √ T / μ

v = √20.48 N / 0.02 kg /m = 32 m/s

λ = v / f

λ = 32 m/s / 40 Hz = 0.8

K = 2 π / λ

K = 2π / 0.8 = 7.854

φ = X * 360 / λ

φ = 0.5 * 360 / 0.8 = 225 °

Using the model of y' displacement

y (t) = A* sin ( w * t - φ )

When t = 0

y (0) = 0.25 m *sin ( w*(0) - 225 )

y (0) = 0.25 * -0.707

y (0) = - 0.18 m

5 0
3 years ago
After exercise your heart rate is
harina [27]

Your heart rate is higher than normal.

7 0
3 years ago
Read 2 more answers
Difference between electrolytes and nonelectrolytes.
Trava [24]

Answer:

Electrolytes are salts or molecules that ionize completely in solution. As a result, electrolyte solutions readily conduct electricity. Nonelectrolytes do not dissociate into ions in solution; nonelectrolyte solutions do not, therefore, conduct electricity

Explanation:

8 0
2 years ago
Read 2 more answers
What is lighting and lighting conductor​
Igoryamba

Answer:

Lightning is a process that occurs when the positive and negative charges present in the cloud build up in such a manner that a spark of lightning occurs between the two of them in the cloud. ... A metal rod placed on top of a building to protect it from a lightning strike is known as a lightning conductor.

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Application - You have two objects that you want to push the same distance (5 meters) across the floor. The objects have differe
    15·1 answer
  • What is the application for reflection of waves?
    6·1 answer
  • Why would physics be used to study light emitted by a star?
    8·1 answer
  • Power =<br> work+ time<br> work<br> time<br> time<br> work<br> Fxd<br> Ext<br> Fxd
    11·1 answer
  • Which law describes the speed at which objects travel at different points in their orbits?
    15·1 answer
  • Uranium-238 (U238) has three more neutrons than uranium-235 (U235). Compared to the speed of sound in a bar of U235, is the spee
    15·1 answer
  • HURRY PLZ
    9·1 answer
  • Water enters a student's house 10.0 m above the ground through a pipe with a cross section area of 1.00 x 10-4m2 at ground. Insi
    13·1 answer
  • 2a. A wave has a frequency of 50 Hz and a wavelength of 0.10 m. How do you find the wave speed? *
    6·1 answer
  • How does velocity change in a circular motion​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!