The general rule of thumb is that the average person burns
100 calories
per mile of running. (Depressingly, that’s only about 30 m&m’s or one banana). That’s 418 kJ or 116 Watt-hours.
How many joules does it take to drive a car?
Travelling at 100 kilometres per hour, it has approximately
770,000 joules
of kinetic energy. If this vehicle collided with a concrete wall, it would deform, transferring some of its kinetic energy into the concrete molecules. Depending on the relative mass and anchorage of the wall, this may cause it to shift.
How much energy is required to run a car?
An average electric car consumes approximately
0,20 kWh/km
.
On favourable weather conditions the consumption can be even 0,15 kWh or less, but year-around average in most countries is closer to 0,2 kilowatthours.
How much power does a 1km car need?
Answer: A reasonable average is 5 km per kWH. Since a kWH is 3.6 MJ, this means about
720 kJ per km
. A reasonable estimate of the absolute minimum energy is to assume no air friction (moving very slowly) and having only rolling friction.
How many joules do you use when running?
Kinetic energy is equal to one half of the runner’s mass times their velocity squared (KE=1/2mv^2). So, if the runner has a mass of 60 kg and wants to run at a rate of 9m/s, they will use about
2,430 Joules
of energy.
Is walking a mile and running a mile the same?
“It takes longer to walk a mile than to run a mile. But
if you match them up on the energy expended, they are comparable
,” Williams said in a telephone interview. “If you do the same amount of exercise – if you expend the same number of calories – you get the same benefit.”
Why is energy required to stop?
When an object is already in motion, why is energy required to stop it? – Quora. Work is required to stop it.
If an object has mass m and speed v, then its kinetic energy is , and it requires work to stop it.
Is kinetic energy in joules?
Unlike velocity, acceleration, force, and momentum, the kinetic energy of an object is completely described by magnitude alone. Like work and potential energy,
the standard metric unit of measurement for kinetic energy is the Joule
.
How many joules is 1200 watts?
| Watt [W] Joule/minute [J/min] | 20 W 1200 J/min | 50 W 3000 J/min | 100 W 6000 J/min | 1000 W 60000 J/min |
|---|
How much oil is in a Tesla?
We recommend catching the used oil and measuring how much came out. In our case, the
front motor drained 1.25 qts and the rear motor drained 2.25 qts
of oil. We added the same amount of oil drained with fresh ATF 9 back into the motors. Make sure to tighten the fill plug.
How many kWh does it take to drive 100km?
In EVs, it’s kilowatt-hours — hence the Tesla Model 3 Standard Range Plus’ official rating of
14.9 kWh per 100 kilometres
. Substitute free electrons (kWh per 100 kilometres) for 93 octane (the L/100 kilometres we’re all familiar with) and the ratings are virtually identical.
Which energy is used to run a car?
The internal combustion engine in the car converts the potential chemical energy in gasoline and oxygen into thermal energy which is transformed into the
mechanical energy
that accelerates the vehicle (increasing its kinetic energy) by causing the pressure and performing the work on the pistons.
How many km are in a kWh?
When cruising, an electric car generally uses 1 kWh of energy to travel approximately
4.8 to 6.4 kilometres
(three to four miles).
How many watts does electric car use?
How much electricity does an electric car use? Generally, electric cars charged at home use about
7,200 watts
(W) of electricity, which can vary depending on the mode and home charger. Most electric car chargers use between 32 and 40 amps, and connect to a 240 volt outlet in your home’s breaker box.
How much energy does a gas car use?
That means that a gasoline car uses
just under 40 kWh to go 100 miles
. An EV, on the other hand, uses around 30 kWh to go 100 miles (given 3.3 miles per kWh, which is on the low side for some cars).
Is 1200 joules a good surge protector?
Units with surge protector ratings of
1000 to 2000 joules will provide sufficient protection for power tools and office equipment such as printers, copiers and routers
.
Is 800 joules enough for a surge protector?
If you’re trying to protect things like cell phones, basic laptops, printers, routers, and copiers, you’ll want a surge protector with a rating
between 1,000 and 2,000 joules
. This rating is also large enough for your power tools and other building appliances.
What is a good amount of joules for a surge protector?
Energy absorption/dissipation: This rating, given in joules, tells you how much energy the surge protector can absorb before it fails. A higher number indicates greater protection. Look for a protector that is at least rated at 200 to 400 joules. For better protection, look for a rating of
600 joules or more
.
Is it better to walk 5 miles or run 1 mile?
Walking can provide a lot of the same benefits of running. But
running burns nearly double the number of calories as walking
. For example, for someone who’s 160 pounds, running at 5 miles per hour (mph) burns 606 calories. Walking briskly for the same amount of time at 3.5 mph burns just 314 calories.
Is it better to walk 2 miles or run 1?
While
walking definitely burns calories, running will help your burn a lot more in less time
. “Walking is considered low intensity and while you still may lose weight, running burns more calories, which will result in a greater weight loss overall,” says Alesha Courtney, CPT.
Is it better to walk faster or longer?
We found
any pace above slow reduced the risk of dying from cardiovascular disease
, such as heart disease or stroke. Compared to slow walkers, average pace walkers had a 20% lower risk of early death from any cause, and a 24% lower risk of death from heart disease or stroke.
What energy travels through empty space?
Electromagnetic waves
differ from mechanical waves in that they do not require a medium to propagate. This means that electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.
What is the relationship between power and time?
Power and time are
inversely proportional
.
How do you calculate joules?
Multiply watts by seconds to get joules
.
A 1 Watt device consumes 1 Joule of energy every 1 second. If you multiply the number of watts by the number of seconds, you’ll end up with joules. To find out how much energy a 60W light bulb consumes in 120 seconds, simply multiply (60 watts) x (120 seconds) = 7200 Joules.
Who has the zero kinetic energy?
Answer. Answer: a
At an object’s lowest point
, kinetic energy is zero/ maximum while potential energy is zero / maximum.
How do you convert joules to MS?
| Joule/second [J/s] Newton Meter/second | 0.01 J/s 0.01 newton meter/second | 0.1 J/s 0.1 newton meter/second | 1 J/s 1 newton meter/second | 2 J/s 2 newton meter/second |
|---|
What is a joule in chemistry?
The SI unit of energy, work, and heat is the joule (J). A joule is
a tiny amount of energy
. For example, it takes about 4 J to warm 1 mL of H
2
O by 1°C. Many processes occur with energy changes in thousands of joules, so the kilojoule (kJ) is also common.
