Question

What happens to the bus? a.the driver has a heart attack. b.it goes through a carwash. c.it gets a flat tire. d.a window breaks.

Answer 1

When you lower the window on a moving car, the air pressure inside the car decreases, creating a pressure difference that can push objects, like an empty plastic bag, out of the window.

Step-by-step explanation:

When you lower the window on a moving car, the air pressure inside the car decreases. At the same time, the air pressure outside the car remains relatively constant. This difference in pressure creates a force called the Bernoulli effect, which can cause objects, like an empty plastic bag, to be pushed out of the window.

The Bernoulli effect states that as the velocity of a fluid (in this case, air) increases, its pressure decreases. When the window is lowered, the air inside the car begins to move faster, resulting in lower pressure inside the car compared to outside. As a result, the higher pressure outside the car pushes the plastic bag out of the window.

Answer 2

The question presents a list of events and asks for an explanation of each option. Option a involves a sudden health emergency, option b is a routine carwash, option c involves a mechanical issue, and option d involves a sudden event that may pose risks to passengers.

a. The driver has a heart attack:

If the driver has a heart attack while driving, there could be a sudden loss of control over the bus.

The bus might swerve, veer off the road, or collide with other vehicles or obstacles, depending on the road conditions.

Passengers on the bus might be at risk of injury due to sudden movements or a potential accident.

b. It goes through a carwash:

If the bus goes through a carwash, it would be a planned and controlled event.

The bus would enter the carwash facility, and automated machinery would clean the exterior of the bus.

This scenario is generally harmless and routine, with no immediate danger to the bus or passengers.

c. It gets a flat tire:

If the bus gets a flat tire while in motion, the driver may experience difficulty maintaining control.

The bus might start to pull to one side, and the driver would likely need to pull over to a safe location to address the flat tire.

Passengers may experience a sudden jolt or change in motion when the flat tire occurs.

d. A window breaks:

If a window breaks, it could be due to various reasons such as impact, extreme weather, or a manufacturing defect.

The breakage might result in a sudden change in air pressure within the bus, and debris could enter the vehicle.

Passengers may be at risk of injury from broken glass or exposure to external elements.

In summary:

Option (a) involves a sudden health emergency for the driver, potentially leading to a loss of control and an accident.

Option (b) is a planned and controlled event, typically harmless.

Option (c) involves a mechanical issue that could lead to a loss of control and requires the bus to stop for repairs.

Option (d) involves a sudden event that could pose a risk to passengers due to broken glass and exposure to external elements.