Why words hurt. ... "So and so's mom is better than you" ...
"I wish you weren't my dad" ...
"You told me that already" ...
"I wish you were dead" ...
"You look ugly today" ...
"I bet you can't wait to get back to work" ...
"You love my brother/sister more than me"

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

How can waves travel through ground?

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 .