mary wants to remove a dent from a ping - pong ball without cutting into the sealed ball. she decides to put…

mary wants to remove a dent from a ping - pong ball without cutting into the sealed ball. she decides to put the ball in a bowl of boiling water. after a while, mary observes the dent disappearing until it is no longer present. why did the dent disappear?\nthe water caused an increase in temperature of the air inside the ball and a decrease in pressure.\nthe water caused an increase in temperature of the air inside the ball and an increase in pressure.\nthe water caused a decrease in temperature of the air inside the ball and a decrease in pressure.\nthe water caused a decrease in temperature of the air inside the ball and an increase in pressure.

mary wants to remove a dent from a ping - pong ball without cutting into the sealed ball. she decides to put the ball in a bowl of boiling water. after a while, mary observes the dent disappearing until it is no longer present. why did the dent disappear?\nthe water caused an increase in temperature of the air inside the ball and a decrease in pressure.\nthe water caused an increase in temperature of the air inside the ball and an increase in pressure.\nthe water caused a decrease in temperature of the air inside the ball and a decrease in pressure.\nthe water caused a decrease in temperature of the air inside the ball and an increase in pressure.

Answer

Brief Explanations:

When the Ping - Pong ball is placed in boiling water, the air inside the ball absorbs heat from the hot water. According to the ideal gas law (or the relationship between temperature and pressure for a gas in a fixed - volume container, since the ball is sealed), when the temperature of a gas (the air inside the ball) increases, and the volume of the container (the ball) is approximately constant, the pressure of the gas increases. The increased pressure inside the ball pushes against the dent, causing it to disappear. So the correct option is the one where the water causes an increase in temperature of the air inside the ball and an increase in pressure.

Answer:

The water caused an increase in temperature of the air inside the ball and an increase in pressure. (The option with this description, e.g., if it's option B, then "B. The water caused an increase in temperature of the air inside the ball and an increase in pressure")