definitions Flashcards
(4 cards)
1
Q
define power
A
rate of doing work
2
Q
Explain why the egg is less likely to break if the floor is covered with a thick carpet
than if the floor were covered in hard tiles.
A
idea of carpet increases impact time;
carpet reduces rate of change of momentum
(for the same speed or momentum of egg);
allow reduces deceleration
or acceleration
(carpet) reduces force
3
Q
whats the frequency for human hearing
A
20Hz-20000Hz
4
Q
A
