Obviously. Liquid has mass, so yes it makes it heavier.
Depending on what you mean by "adding more fuel" The more fuel that is in your tank the heavier the car becomes. Weight has a direct effect on mileage and power. The heavier a vehicle is, the less efficient it becomes. So not only will it not make it faster, it will make it slower and less powerful. Because you are reducing the horsepower to weight ratio, the car will use MORE fuel to move itself. Especially when you are climbing hills or under acceleration (speeding up)SIMPLY PUT: When you add fuel you are adding weight. The added weight slows the car down.
Yes, directly proporiate to weight. A 2500lb car will consume half the fuel of a 5,000lb car
there is no accesory for that
The more the vehicle weighs the more mass the engine must move. The more mass that the engine is required to move, the more power it requires. A larger engine with more power required to move a heavier vehicle uses more fuel.
The train is heavier than the car is and the train has more things in the back. The train is heavier than the car is and the train has more things in the back.
A car with a larger mass requires more energy to accelerate and maintain speed compared to a lighter car, due to the increased inertia. Additionally, the greater weight creates more rolling resistance and can lead to higher friction with the road, which further increases fuel consumption. As a result, even for the same distance traveled, the heavier car typically uses more fuel.
A clogged fuel filter or fuel line will likely make your car sputter as if it is going to stall.
It depends on a lot of factors. The classic question which will fall faster, an apple or a bowling ball comes to mind. When you are talking about a car, it is no longer vertical and not directly correlated to the pull of gravity. If both have identical components, and going downhill, the heavier car will have more momentum behind it (Potential Energy). Along the flat, the heavier car will have more friction. Uphill, the heavier car will have a bigger energy difference, and more energy (more work) will be required to make it go up the hill. In short, the heavier car will win going downhill, that's it. And it will hurt more when it hits.
A car has to be fuel efficient. It means it has to completely burn the fuel.
The features that make a car more eco-friendly are reduced fumes, reduced fuel combustion or no fuel combustion at all, cars that run purely on electricity or electric cars and cars that are powered by organic biofuel.
Although it is heavier, steel usually provides better support and strength in a car and is used more frequently.
You have to know the answer already. The large truck is heavier of course.