Recent content by RachelSSS

so I am done that's it! the end! omg thanksssssssssssssssssssssss :):):):) oxoxoxox. 1 of 11 down. hahah thanks

air is softer then concrete? I don't know. the airbag would the difference casue he'll bounce and not land on rock hard concrete

when your falling with a lot of momentum, you need a lot of force to stop you, the only forces acting on him would be the normal force and gravtity. The force of the air pushing him up after he hits the air bag.

Thanks! so everything else i said was right?

Well for this one i was thinking that when the actor falls, he has a lot of momentum. so i wasnt sure how he was goign to stop and actually be safe. but went hits the air bag, there's an impulse with changes his momentum to 0?

light is described as having a dual nature-- behaves as a particle and wave. (a) describe a pivotal experiment that offered support for the wave model of light. Indicate the wave like behavious in the experiment. (b) SAme thing but for a particle FOr the light as a wave I was thinking...

how is a car crash desirable tho. people will just get hurt and/or die. Well if the car crash is highly inelastic, would the cars would just bounce off each other kinda?, and if it was elastic they would get smashed even more

Ok, well... waht about a hammer hitting a nail. An inelastic collision would transfer the energy into hitting the nail straight in

In a collision, momentum is conserved becasue the lose of one object is the gain of another object and vice versa. But kinetic energie is not conserved, but change into a differnt type of energie (thermal, internal, etc.)

like... p = mv. impulse is the change in momentum so p=mv2-mv1. Grade 12 physics

well, I am not totally sure, but i think momentum is alwasy conserved, becasue it can't leave the objects the are in collision.

Well, i think that kinetic energie can't be destroy, but in an inelastic collision, the kinetic energy turns into different kinds of energy like internal energy. i thoguht a car crash would be a good explain for a inelastic collision. Becasue they crumple up and stick together. Which happens...

Explain how momentum can be conserved in a collision when kinetic energy is not? Describe a situation in which it is desirable to have a highly inelastic collision. Explain why in this case. In motion pictures, stunt people can fall from great heights and land safely on giant airbags. Using the...

Light of wavelenght 630nm passes through a single slit. The angular deflection to the tenth dark band on the side of the center maximum is 3.6 degrees. A) Calculate the slit width. B) Calculate the angular deflection to the tenth dark band using light of 450 nm wavelenght. Relevent Equations...