3. В об'ємі V= 7,5л при температурі Т= 300 К міститься суміш газів: V1 = 0,1 моля кисню, v2 = 0,2 моля азоту і v3 =
0,3 моля вуглекислого газу. Вважаючи гази ідеальними,
знайти тиск суміші та середню молярну масу цієї суміші.

Очень нужно, помогите пожалуйста.

Steelhead trout migrate up stream to spawn.occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b.leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.

Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate