# Physics HELP!!!!!!!!

A bottle of juice is sealed under partial vacuum, with a lid on which a red dot or "button" is painted. Around the button the following phrase is printed: "Button pops up when seal is broken."

Explain why the button remains pushed in when the seal is intact.

Because there is a partial vacuum on the inside until the seal is broken. With atmospheric pressure on the outside, there is a net force pushing down on the cap.

correct.

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?

1. 👍 0
2. 👎 0
3. 👁 270
1. pulling 6.0N over a distance of 12.5m how much force is used

1. 👍 0
2. 👎 0

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