3. Electric cars are being rapidly developed to replace gasoline powered cars, but the problem is not easy because it is hard to find as good a way as gasoline for storing and transporting energy.
a. How much chemical energy in Joules are in 15 gallons of gasoline?
b. The energy capacity of batteries, such as used in the Tesla cars, are given in kW hrs. Their standard battery is 7.0 kW hrs and the cost is a substantial fraction of the price of the car. What capacity would a battery have to be equal to the energy in 15 gallons of gas? ​

Answers

Answer 1

To convert 15 gallons of gasoline to chemical energy in joule, multiply the figure above by 15 which is 1,800,000,000 Joules. Answer to b part is 60KWhrs

a.) A gallon of gasoline in most countries contain about 120 millions joule of chemical energy.

To convert 15 gallons of gasoline to chemical energy in joule, multiply the figure above by 15. That is,

Chemical energy = 15 x 120000000 = 1,800,000,000 Joules

b.) Also, the amount of energy cost per gallon of gasoline produced in most countries is equivalent to about 4 kilowatt hours. The capacity that would be equal to the energy in 15 gallons of  gasoline that a battery should have will be

Capacity = 4 x 15 = 60 KWhrs

Therefore, the capacity a battery will have to be equal to the energy in 15 gallons of gasoline will be 60 KWhrs.

Learn more here: https://brainly.com/question/68601


Related Questions

Explain how a book can have energy even if it is not moving.

Answers

A book can have energy by its words by how it’s talking in the book. honestly I’m not too sure that’s just how I would explain it

if a dolphin swims at 15 m/s for 30 seconds, how far would the dolphin swim?

Answers

it would swim 30*15 metres, which is 450 metres.

The ………………………. is the substance/material travels through
1. Energy
2. Medium
3. Transverse
4. Longitudinal

Answers

Answer:

energy

Explanation:

the energy is the substance

Answer:

Medium

Explanation:

what does auxiliary heat mean on a honeywell thermostat

Answers

Answer: Aux Ht or Auxiliary heat is the backup heat that turns on to help the compressor for first stage maintain your temperature setting. ... When the thermostat is in this position the compressor does not run, only the Emergency heat runs

Explanation:

Question:

What does auxiliary heat mean on a Honeywell thermostat.

Answer:

What does aux heat mean on a Honeywell system? Short for auxiliary heat, this system is designed to heat your home up quickly instead of waiting for the cold heat pump on the exterior of your home. Unfortunately, using the auxiliary heat is significantly more expensive than using your heat pump.

Explanation:

Aux on the thermostat stands for auxiliary heat. Auxiliary heat is the electric heat strip in your air handler that is supplemental heat. Emergency heat is the same thing as auxiliary heat. Auxiliary heat/ Emergency heat help the heat pump keep up when cold outside or the temperature differential on the thermostat is large.

A car travels 5 km towards north than turns right and travels 3km further, the car again turns right and travel 1 km and comes to rest. What is the
distance travelled and displacement of the car ?

Answers

The car traveled a distance of 9km and the displacement was 3km

Jonathan in his motorcycle is going 70 miles per hour. How long would he take to go to a city 200 miles away?

Answers

Answer:

28.57 hours

Explanation:

The time taken by the motorcycle to reach the city can be found by using the formula

[tex]t = \frac{d}{s} \\ [/tex]

d is the distance

s is the speed

From the question

d = 200 miles

s = 70 miles / hour

We have

[tex]t = \frac{200}{7} \\ = 28.571428 \\ [/tex]

We have the final answer as

28.57 hours

Hope this helps you

Tell me the answer what will be in blanks​

Answers

Answer:

what do you mean by blanks??

Explanation:

i don't get

it

Answer:

ikoon

Explanation:

i think so it ikoon

I WILL MARK YOU IF YOU HELP

An object has a mass of 3.8 kg and a force of 11.6 N is applied to it. What is the acceleration that results?

Answers

F=ma
11.6=3.8*a
a=11.6/3.8
a=3.05m/s

whats the answer
----------------------------

Answers

Answer:

repel each other

Explanation:

The magnitude of the charge of an electron is called... ... If a positively-charged glass rod is suspended so that it turns easily and another positively-charged glass rod is brought close to it, the two rods will... Repel each other.


Consider the diagram of a pendulum's motion shown above. A pendulum can be used to model the change from potential energy
to kinetic energy and back to potential energy. Locate the place in the diagram where kinetic energy is the greatest.
A.point A
B.point B
C.point c
D.both points A and B

Answers

Answer: D

Explanation: Potential stores Kinetic Energy so, Point C will have Kinetic turned into Potential.

Answer: the answer is D

Explanation:

Interpret the data:

Make a claim that answers the scientific question.

Answers

umm what’s the data

Help asap please thank you

Answers

Answer:

1. 5 m/s

2. 5 m/s/s

Explanation:

1. 50 - 5 = 45

45/9 = 5

2. 25 - 0 = 25

25/5 = 5

hope this helps!

write the energy conversion when climbing a ladder​

Answers

A child climbing a ladder is transforming kinetic energy into potential energy.

From rest, a car accelerates to 4.2 m/s2 for 10 seconds before winning the race. How far did it run?

Write the final answer in complete sentence.

Answers

Answer:

[tex] s = ut + \frac{1}{2} a {t}^{2} \\ u = 0 \\ a = 4.2 \: m {sec}^{ - 2} \\ t = 10sec \\ s = 0 + \frac{1}{2} (4.2) {10}^{2} \\ = 1.2 \times 100 \\\boxed{ s = 120 \: m}[/tex]

Explain how pressure can be used to
change the state of matter

Answers

Answer:

Physical conditions like temperature and pressure affect state of matter. ... When the pressure exerted on a substance increases, it can cause the substance to condense. Decreasing pressure can cause it to vaporize. For some types of rock, decreasing pressure can also cause them to melt.

Please help me. Brainiest to the correct answer.

A computer uses 40W of power. Calculate the current it draws when connected to a 230V mains supply.

Answers

Answer:

0. 174 A

Explanation:

This is similar to your other question

[tex]\boxed{\mathfrak{Power(P)=Voltage(V) \times Current(I)}}[/tex]

Voltage (V) = 230 VPower (P) = 40 W

=> 40 = 230 × I

=> [tex]\mathsf{I=\frac{40}{230} }[/tex]

=> I = [tex]\mathsf{\frac{4}{23} }[/tex]

=> I = 0.174 A

I is the current, the computer draws when connected to a 230 V mains supply, and it's SI unit is Amperes.

                               

[tex]\mathfrak{\overline{There\: you \: are!}}[/tex]

Where are the field poles mounted on an alternator
A. Load
B. Shaft
C. Exciter
D. Rotor

Answers

Explanation:

(D) i think there you go have a good day

why is the pressure in the bottom of the pacific ocean much bigger than near the surface

Answers

Answer:

increase in hydrostatic pressure

Explanation:

he force per unit area exerted by a liquid on an object. The deeper you go under the sea, the greater the pressure of the water pushing down on you. For every 33 feet (10.06 meters) you go down, the pressure increases by one atmosphere .

Brainliest pls

you push on box g that is next to box h, causing both boxes to slide along the floor, as shown in the figure. the reaction force to your push is

Answers

The reaction force to your push is the push of box G against you.

Newton's third law states that:

For every action, there is an equal opposite reaction.

So if an object x pulls or pushes an object y with a certain force, object y also exerts an equal and opposite force on object x.

Now, if you should push box G with a certain force, box G will exert an equal opposite force on you.

Hence, the reaction force to your push is the push of box G against you.

Learn more:  https://brainly.com/question/15280051

How does the mass of an object affect its acceleration?

Answers

Answer:

as the mass of an object is increased, the acceleration of the object is decreased & vice-versa.

Explanation:

hope this helps!

Why does the sun have an up and down motion in the sky?

Answers

Answer:

The sun stays in its position at the center of our solar system. It doesn't rise and set. But it appears to rise and set because of the Earth's rotation on its axis

Explanation:

Hope this helps :)

Why does the magnitude of the resultant force increases once the box start moving?

Answers

proportional to the variation of the linear momentum

(hope this helps) :)

how long does it take for a pap smear to come back

Answers

it takes 1 to 3 weeks

A 1200kg car traveling at a speed of 29 m/s drives horizontally of a 90m cliff the potential energy is=

Answers

Answer:

Sketch the situation.

b. Calculate the potential energy, the kinetic energy, and the total energy of the car as it leaves the cliff.

c. Make a graph displaying the kinetic, gravitational potential, and total energy of the car at each 10 m

increment of height as it drops

Explanation:

The potential energy of the car at that position is 10.6 x 10⁵ J.

What is meant by potential energy ?

Potential energy of an object is defined as the energy acquired by the object by virtue its position.

Here,

Mass of the car, m = 1200 kg

Speed of the car, v = 29 m/s

Height of the cliff, h = 90 m

Therefore,

Potential energy of the car, PE = mgh

PE = 1200 x 9.8 x 90

PE = 10.6 x 10⁵ J

Hence,

The potential energy of the car at that position is 10.6 x 10⁵ J.

To learn more about potential energy, click:

https://brainly.com/question/21288807

#SPJ3

I forgot to post the pic
But please help
just need answers​

Answers

Answer:

1.127,56,000m

2. 347,600,000

3. 384,000

4. 200000000

5.  16,000,000cm

6. 36,000,000cm

7. 125,000m long, 400m deep, 1,500m wide

8. 11.18km/sec

9. 5,400,000

10.  2g

11. 1,200 mg to 2700 mg

12.   158000 kg

13. 450000000 mg

14.    23,000g to 90,000g

15.   40,000 ML

16.  1,000 ML

17.  26,600 KL

18. 1,558,000 L

19. 60 ML

20. 0.947

What is an example of a chemical change

Answers

Answer:

Hello, Rotting, burning, cooking, and rusting are all further types of chemical changes because they produce substances that are entirely new chemical compounds. For example, burned wood becomes ash, carbon dioxide, and water. When exposed to water, iron becomes a mixture of several hydrated iron oxides and hydroxides.

Explanation:

I hape this helps remember to make someone smile today

What is the power of a diverging lens of focal length 0.4 m
a) 2.5
b) 3.5
c)-3.5
d)-2.5

Answers

Answer:

-2.5 is the answer to your question

I NEED THE RIGHT ANSWER ASAP IT NEEDS TO BE 100% ACCURATE NO LINKS!!! Which type of force will an object move towards?
1: weakest
2: net
3: balanced
4: strongest
this is a Science question

Answers

Answer:

Strongest

Explanation:

Weak forces do not possess significant strength to pull an object. Net forces is the sum of all forces acting on an object. Balanced forces cancel each other out to have no pull whatsoever. S

The Red one is wrong also the blue mark means nothing

Answers

Answer:

it is c

Explanation:

the car is moving back to its original position

a bubble of air of volume 1cm^3 is released by a deep sea diver at a depth where the pressure is 4.0 atmospheres. assuming its temperature remains constant (T1=T2), what is its volume just before it reaches the surface where the pressure is 1.0 atmosphere?

Answers

Answer:

hope this helps!

Explanation:

Volume of the air bubble, V1=1.0cm3=1.0×10−6m3

Bubble rises to height, d=40m

Temperature at a depth of 40 m, T1=12oC=285K

Temperature at the surface of the lake, T2=35oC=308K

The pressure on the surface of the lake: P2=1atm=1×1.103×105Pa 

The pressure at the depth of 40 m: P1=1atm+dρg

Where,

ρ is the density of water =103kg/m3

g is the acceleration due to gravity =9.8m/s2

∴P1=1.103×105+40×103×9.8=493300Pa

We have T1P1V1=T2P2V2

Where, V2 is the volume of the air bubble when it reaches the surface.

V2=

Other Questions
i'll give you the brainliest!! it's not hard Conservation of Momentum How is a 1997 Canadian murder case involving a 23-year-old man connected toSmaw's course about zombies? The gas release during a chemical reaction which causes fizzing known as? Difference between i) bacteriostatic and bactericidal and ii) broad and narrow spectrum? Can someone name me a famous english song that is covered by 3 different famous singers?Because i need to do a comparison between those 3 voices!thank you The atomic mass of an element can change as the number of________ changes.(Options:)a. neutronsb. electronsc. protons Considering the impact of inflation, why is investing important? trnh by con ng chuyn sang ni k sinh ca giun trn ? Dani's Delicious Donuts recipe calls for 434 cup of flour per batch of cookies. If youwant to make 1.5 batches, how many cups of flour do you need? what is Treaty of Versailles Share 880 into the ratio of 3:1 5. How do ocean currents impact land temperatures? 1.Winds from the land help drive ocean currents. 2.Winds from the ocean bring temperatures related to the ocean currents. 3.Ocean currents do not impact land temperatures. 4.Ocean currents bring temperatures away from the nearby land. plss help. brainliest for right answer who has their busiest day of the year on the day after thanksgiving? (DO NUMBER 7 ONLY)7. Tropical Storm Ava brought heavy rain toGalveston, TX. The table shows the linearrelationship between the total inches of rainfalland time in hours. Calculate the rate of changeof rainfall per hour.1261824HoursRain (inches)13.5a184.5 Determine if the leading coefficient of the following function is positive or negative and whether the function has a minimum or maximum vertex point. Question 42.5 ptsA pitcher on a baseball team is practicing his fast ball and trying to ensure he hits the strike zone.He consistently releases the ball at 5.5 feet high while he is pitching. The pitcher must aim for theball to hit the ground approximately 50.4 feet from the pitcher's mound in order to stay in the strikezone. At what angle of depression, to the nearest tenth of a degree, must he release the ball? Si un tringulo tiene de lados 4 y 5 metros y el ngulo entre ellos es de 30, Cul es el rea de la figura? Hi, really need help on this last question for the night, heeeeelp pls.