Mass (kg) 2
4
6
8
12
15
Weight
(N)
20
35
55
70
105
135
What is the independent variable in this experiment

How many molecules are present in 3 mols of silicon dioxide (sio2)?

If the wheels lock when braking suddenly the vehicle: a: loses traction b: lose steering wheel ability c: gain speed slightly d: gain steering ability

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass