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
kykrilka [37]
3 years ago
8

A certain car battery with a 12.0 V emf has an initial charge of 131 A · h. Assuming that the potential across the terminals sta

ys constant until the battery is completely discharged, for how many hours can it deliver energy at the rate of 130 W?
Physics
1 answer:
irga5000 [103]3 years ago
7 0

Answer:

The battery can supply 130 W for 11.75 h

Explanation:

In order to discover the time in wich the battery can supply this energy we need to find how much current is being drawn from it, we do that by using the equation for real power that is P = V*I, since we have V and P we can solve for I as seen bellow:

I = P/V = 130/12 = 10.834 A

We can use this value to find how many hours the power can supply said current. We do that by dividing the current capacity of the battery by the current drawn:

t = 141/12 = 11.75 h

You might be interested in
Which is the best example of Newton's First Law of Motion? A small, lightweight ball and a large, heavy ball are dropped off the
Marizza181 [45]
I believe the best example of Newton's First Law of motion would be the example or illustration with the basketball player. An object will move in a straight line or a given direction at a constant speed unless or until another force acts upon the object, causing a change in speed and or direction.
4 0
3 years ago
Read 2 more answers
Why is earth's temperature just right for life?
Rudik [331]
The answer is letter b
7 0
3 years ago
Which of the following is the correct description of momentum?
victus00 [196]

Answer:

The product of mass and velocity is the correct answer

Explanation:

Momentum is defined as mass × velocity

p = mv

7 0
3 years ago
Which of the following modifications to a solenoid would be most likely to decrease the strength of its magnetic field?
Goryan [66]

By reading the fine details of the question, carefully and analytically, I have determined that there's no list of modifications to choose from.

The strength of the magnetic field of a solenoid depends on the electric current in its coil windings, the number of wire turns in its coil windings, and the material in its core.

In order to <em>DE</em>crease the strength of its magnetic field, any one or more of these steps could do the job:

-- DEcrease the electric current in its coil windings.  This can be accomplished by decreasing the voltage of the power source that energizes the coil, and/or increasing the resistance of the wire in the coil.

-- DEcrease the number of wire turns in the coil.

-- If the solenoid has anything in its core, change the core to something with a lower magnetic 'permeability'.  An Iron core will produce the greatest magnetic field strength.  Air, vacuum, or NO core will produce the lowest magnetic field strength.

8 0
3 years ago
Studying climate on other planets is important to understanding climate on earth because
zhenek [66]

Answer:

yes it is important.

Explanation:

It is important to study the climate of other planet to understand the climate of the earth because it is useful to know which things are harmful for our earth and which are important for our earth climate comparing with the other planets.

6 0
3 years ago
Other questions:
  • A rock falls from the top of a cliff. What will happen to the rock's kinetic energy when it strikes the ground below?
    9·2 answers
  • A wire of Nichrome (a nickel-chromium-iron alloy commonly used in heating elements) is 1.3 m long and 1.6 mm2 in cross-sectional
    9·1 answer
  • How does a seat belt stop your body from moving in a forward motion in a car?
    12·1 answer
  • How many neutrons does element X have if its atomic number is 48 and its mass number is 167?
    11·1 answer
  • The length of an aluminum wire is quadrupled and the radius is doubled. By which factor does the resistance change?
    14·1 answer
  • A motorcycle has a velocity of 24 m/s, due south as it passes a car with a velocity of 15 m/s, due north. What is the magnitude
    13·1 answer
  • What type of energy does friction produce?
    6·1 answer
  • A car of mass 1000 kg is travelling at 10 m/s. What is its kinetic energy?
    5·1 answer
  • The Sun is divided into three regions.<br> True оr False?
    10·2 answers
  • A boy is swinging a yo-yo with mass 0.5 kg in a circle with radius 0.7 m at a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!