How does friction affect total mechanical energy?
Mechanical energy is reduced due to friction and converted to heat. This is the reason why there is an increase in temperature in objects that move against each other. The role of friction in a closed system is to convert a part of the total energy to heat.
Why is it dangerous to puncture an aerosol can?
The cans are considered to be hazardous because they contain a liquid hazardous waste or are still pressurized, which may cause them to potentially explode at the landfills.
What happens if you burst an aerosol can?
Aerosols are pressurised so please remember: Do not pierce aerosols, even when they are empty, because there is always some pressure, and possibly some of the product left. It may be flammable or cause injury if you pierce the can. Keep aerosols out of the sun and in a cold dry place away from heat.
Can an aerosol can explode?
In the most severe cases, aerosol cans may explode, burning nearby workers and showering them with steel shrapnel. The second hazard is the actual product being dispensed by the can. Finally, if either the propellant or the product it delivers is flammable, the aerosol can creates a fire hazard.
Will an aerosol can explode in a hot car?
Concealer, moisturizer and lipstick can quickly become a hot, gooey mess when heated to extreme temperatures. Hairspray, or any aerosol can, should not be exposed to temperatures greater than 120 degrees because the pressurized container can quickly explode.
Why is there a warning label on aerosol cans advising you not to incinerate these cans?
The propellant will expand and expand until the can ruptures or explodes. Many propellants are flammable. Additionally, the product in the can may also be flammable leading to a fiery explosion or flash fire. Obviously this is dangerous and that’s why the cans carry “do not incinerate” labels.
Why do aerosol containers display the warning do not incinerate use the temperature and pressure relationship?
If pressure increases enough (due to high heat) the can could explode. Why do aerosol cans have a “do not incinerate (burn)” warning? Due to the salt level, the water’s “density” is greater. This increased “density” exerts a greater “buoyant force” on the body, so you float more easily.
Why do aerosol cans explode if heated quizlet?
D) As pressure increases, the gas in the aerosol can vaporize, and the can will no longer work. As the can heats, the compressed gases will expand, causing the can to explode.
What will happen if a balloon is placed in a freezer quizlet?
What will happen to the size of a balloon when it is placed in a freezer? Explain. It shrinks; as the temperature of the air decreases, the volume of the air decreases.
What happens to the particles in a gas when the gas is compressed?
What happens to the particles in a gas when the gas is compressed? The space between particles is reduced. Explain why heating a contained gas that is held at a constant volume increases its pressure. The increased kinetic energy of the particles causes collisions to occur more frequently and with more force.
Why do manufacturers produce different types of tennis balls for high and low elevations?
The reason for this is because at high altitudes, the air pressure is lower. When the tennis ball flies through the air, the air pushes against it and slows it down (this is called air resistance). Since less air pressure would mean less air resistance, they compensate by making the balls bigger.
Can you use high altitude tennis balls at sea level?
Here at 5,280 feet (give or take some elevation), those fuzzy yellow spheres bounce like they’re made of FLUBBER, not rubber! They don’t have this problem at sea level, where traditional yellow balls have a feel and bounce like, well, a tennis ball. High altitude tennis balls are designed for play at or above 3,500 ft.
Why a thin walled can will collapse when the air inside is removed by a vacuum pump?
Answer. The air inside a tin can exerts pressure against the interior surface that pushes the walls of the can outward and the air outside of the can exerts pressure that pushes the sides inward. The result is that the tin can collapses when the air inside is removed.
Why can you drink through a soda straw?
Sipping a drink through a straw might seem simple. But you are actually using some fancy air pressure changes to move your beverage. The sipping action occurs when you lower the air pressure in your mouth, which allows the atmospheric pressure to push the liquid up the straw.