Why my mom always be moaning in the room by herself?

best answer gets brainiest

Spend time observing or thinking about events that involve matter and energy. which events can you explain? which events can’t you explain?

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction. true or false?

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 .