200 Kg Car Travelling at 10m/s hits a tree and is brought to rest in 0.10s. What is the magnitude of average force acting on the car to bring it to rest?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

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 .

Earth's atmosphere is composed of mostly two gases. name the two gases that make up the majority of the atmosphere and use the pie chart to tell the percentages of each.