How far did they travel in total? for how long were they cycling?
For how long did they stop for lunch?
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Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n

Hydrogen and helium are both members of?

Which accurately compares concave and convex lenses?