You buy a bag of crisps in an airport. after take-off you take the crisps out of your rucksack. explain in detail why the bag has expanded?

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

Acar travels 40m in 8 seconds find the car speed