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
faltersainse [42]
3 years ago
11

what is the resistance of a car light bulb that conducts 0.025 A current when connected to a 12 V car accumulator? Is the curren

t in the bulb steady?
Biology
2 answers:
tangare [24]3 years ago
6 0

Answer:

R = 480 Ohm

Yes, the current is steady since the power supply is a constant 12V (comming from the battery).

Explanation:

U=I*R

R = U / I

U = 12 V

I = 0.025 A

R = 12 / 0.025

R = 480 Ohm

Amanda [17]3 years ago
4 0
Resistance=voltage/current
=12/0.025
=480 Ohms
You might be interested in
The chemical composition of a star can be determined using a
beks73 [17]
<span>absorption spectra is your answer. i had the same multiple choice question last year</span>
3 0
3 years ago
Part A Match the structures with their appropriate functions: O Roots allow plants to obtain water, nutrients and glucose, while
makvit [3.9K]

Answer:

The correct answer is - Roots allow plants to obtain water and nutrients, while shoots allow plants to obtain gases and sunlight.

Explanation:

Plants have two major parts of the body normally root and shoot. roots are the parts of plants that usually present under the ground and absorbed the essential nutrients and minerals for the life of the plant. Water is also absorbed by the roots that are used in the various processes such as transpiration and photosynthesis.

The shoot includes stem and leaves and responsible for the exchange of gases, particularly taking in carbon dioxide and removes oxygen with help of stomata. These also absorbs sunlight with help of chlorophyll present on the leaves.

8 0
3 years ago
What is CdK?<br><br> A. A protein substrate<br> B. An enzyme
taurus [48]

Answer:

I think it's A) A protein substrate

8 0
2 years ago
How is a whale more like a human than a fish? CHOOSE ALL THAT APPLY 1.warm blooded 2.breast feeds its young 3.spends much time o
HACTEHA [7]

Answer:

1. warm blooded, 2. breast feed its young

Explanation:

Whales are warm blooded, which means they keep a high body temperature that does not change in the cold water. Fish are cold-blooded, so their body temperature changes depending on the temperature of their environment. AND hales are other mammals that feed their young milk too, although it takes plenty more to feed them than human babies

7 0
2 years ago
assume that life on Mars requires cell potential to be 100mV, and the extracellular concentrations of the three major species ar
svetlana [45]

Answer:

Explanation:

From the information given:

The cell potential on mars E = + 100 mV

By using Goldman's equation:

E_m = \dfrac{RT}{zF}In \Big (\dfrac{P_K[K^+]_{out}+P_{Na}[Na^+]_{out}+P_{Cl}[Cl^-]_{out} }{P_K[K^+]_{in}+P_{Na}[Na^+]_{in}+ P_{Cl}[Cl^-]_{in}}      \Big )

Let's take a look at the impermeable cell with respect to two species;

and the two species be Na⁺ and Cl⁻

E_m = \dfrac{RT}{zF} In \dfrac{[K^+]_{out}}{[K^+]_{in}}

where;

z = ionic charge on the species = + 1

F = faraday constant

∴

100 \times 10^{-3} = \Big (\dfrac{8.314 \times 298}{1\times 96485} \Big) \mathtt{In}  \Big ( \dfrac{4}{[K^+]_{in}}   \Big)

100 \times 10^{-3} = 0.0257 \Big ( \dfrac{4}{[K^+]_{in}}   \Big)

3.981= \mathtt{In} \Big ( \dfrac{4}{[K^+]_{in}}   \Big)

exp ( 3.981) = \dfrac{4}{[K^+]_{in}} \\ \\  53.57 = \dfrac{4}{[K^+]_{in}}

[K^+]_{in} = \dfrac{4}{53.57}

[K^+]_{in}  = 0.0476

For [Cl⁻]:

100 \times 10^{-3} = -0.0257 \  \mathtt{In} \Big ( \dfrac{120}{[Cl^-]_{in}}   \Big)

-3.981 =  \  \mathtt{In} \Big ( \dfrac{120}{[Cl^-]_{in}}   \Big)

0.01867 =  \dfrac{120}{[Cl^-]_{in}}

[Cl^-]_{in} = \dfrac{120}{0.01867}

[Cl^-]_{in} =6427.4

For [Na⁺]:

100 \times 10^{-3} = 0.0257 \Big ( \dfrac{145}{[Na^+]_{in}}   \Big)

53.57= \Big ( \dfrac{145}{[Na^+]_{in}}   \Big)

[Na^+]_{in}= 2.70

6 0
2 years ago
Other questions:
  • A 10-day-old, mechanically ventilated newborn suddenly develops a low heart rate (bradycardia) and low oxygen saturation, despit
    10·1 answer
  • How dose plate tectonics effect climate
    7·1 answer
  • James suffers a heart attack. His heartbeat and breathing have stopped completely. How would you help him?
    15·2 answers
  • What is overproduction?
    14·2 answers
  • RNA and DNA are which type of organic compound?
    5·2 answers
  • How would I set out a results table for the whole class results on an experiment? The results are how much bacteria is on an aga
    12·1 answer
  • Which form of poetry is a poet likely to use to narrate a fairy tale set to music?
    9·1 answer
  • Select the correct answer.
    14·1 answer
  • How does the electron transport chain depend on the Krebs cycle?
    8·1 answer
  • Explain why cell potentials are not multiplied by the coefficients in the balanced equation.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!