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
Alja [10]
3 years ago
11

If the surface of the conductor increases 4 times what will happen to the electrical resistance?​

Physics
1 answer:
marishachu [46]3 years ago
5 0

Answer:

Increases

Explanation:

Higher current Higher resistance

Directly proportianal to each other

You might be interested in
You launch a cannonball at an angle of 35° and an initial velocity of 36 m/s (assume y = y₁=
velikii [3]

Answer:

Approximately 4.2\; {\rm s} (assuming that the projectile was launched at angle of 35^{\circ} above the horizon.)

Explanation:

Initial vertical component of velocity:

\begin{aligned}v_{y} &= v\, \sin(35^{\circ}) \\ &= (36\; {\rm m\cdot s^{-1}})\, (\sin(35^{\circ})) \\ &\approx 20.6\; {\rm m\cdot s^{-1}}\end{aligned}.

The question assumed that there is no drag on this projectile. Additionally, the altitude of this projectile just before landing y_{1} is the same as the altitude y_{0} at which this projectile was launched: y_{0} = y_{1}.

Hence, the initial vertical velocity of this projectile would be the exact opposite of the vertical velocity of this projectile right before landing. Since the initial vertical velocity is 20.6\; {\rm m\cdot s^{-1}} (upwards,) the vertical velocity right before landing would be (-20.6\; {\rm m\cdot s^{-1}}) (downwards.) The change in vertical velocity is:

\begin{aligned}\Delta v_{y} &= (-20.6\; {\rm m\cdot s^{-1}}) - (20.6\; {\rm m\cdot s^{-1}}) \\ &= -41.2\; {\rm m\cdot s^{-1}}\end{aligned}.

Since there is no drag on this projectile, the vertical acceleration of this projectile would be g. In other words, a = g = -9.81\; {\rm m\cdot s^{-2}}.

Hence, the time it takes to achieve a (vertical) velocity change of \Delta v_{y} would be:

\begin{aligned} t &= \frac{\Delta v_{y}}{a_{y}} \\ &= \frac{-41.2\; {\rm m\cdot s^{-1}}}{-9.81\; {\rm m\cdot s^{-2}}} \\ &\approx 4.2\; {\rm s} \end{aligned}.

Hence, this projectile would be in the air for approximately 4.2\; {\rm s}.

8 0
1 year ago
Read 2 more answers
What happens when a person’s immune system is very weak?
Alexeev081 [22]
The correct answer is C) becuse without certain medicine they will dieeeee
6 0
3 years ago
10. As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the captain on board radios that
Oliga [24]

Answer:

Explanation:

10. As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the captain on board radios that her spaceship's length is 1150 m. (c = 3.00 × 108 m/s) (a) How fast is the rocket moving relative to Earth? (b) What is the TOTAL energy of a 75.0-kg crewman as measured by (i) the captain in the rocket and (ii) the Earthling?

3 0
2 years ago
If you touch a hot light bulb and get burned, that is an example of _____.
Anton [14]

The answer is C conduction

7 0
2 years ago
Read 2 more answers
Which list below contains only ionic compounds?
Vesna [10]
C.
Explanation: ionic compounds are metals and nonmetals, refer to your periodic table
3 0
2 years ago
Other questions:
  • What causes atoms to bond together<br> ?!?
    12·2 answers
  • Constant centripetal force causes the movement of an object in _____.
    13·1 answer
  • Newton's third law with magnetic forces?
    5·1 answer
  • The theory that the Earth's crust and part of the upper mantle are broken into sections that move on a fluid layer of the mantle
    14·1 answer
  • Find the ratio of the new/old periods of a pendulum if the pendulum were transported from earth to the moon, where the accelerat
    7·1 answer
  • How do the properties of an electromagnetic wave change as a result of increasing the period of the wave?
    11·1 answer
  • The tendency of an object to stay at rest is due to its
    15·1 answer
  • What two quantities must stay the same in order for an object to have a constant velocity? A) The speed and kinetic energy must
    15·1 answer
  • HELPPPPPPP MEEEEEEE ASAP PLZZZZZZZZZ
    9·2 answers
  • Which type of mine involves digging tunnels and shafts deep underground?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!