Agas is heated from 298 k to 367 k while its volume changes from 2.5 l to 3.9 l. if the initial pressure of the gas is 1.1 atm, what is the final pressure of the gas?

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .