Madame Currie has a mass of 70 kg and is sitting on a sled of mass 20 kg She is in a school zone conducting a crazy spring sled launcher experiment, The sled is next to a giant horizontal spring which is currently launching the sled Northwards. Currently the sied has a velocity of 10 m/s (N) and the spring is still compressed 250 cm. The stiffness of the spring is 2000 N/m and the coefficient of friction between the sied and icy ground is 0.150 She exits the spring, system and a police cruiser nearby checks her speed with a radar gun, Determine it she is breaking the speed limit law of 40 km/h in a school zone.

According to newton's second law, when the same force is applied to two objects of different masses, a the object with greater mass will experience a great acceleration, and the object with less mass will experience an even greater acceleration, b. the object with greater mass will experience a smaller acceleration, and the object with less mass will experience a greater acceleration, c. the object with greater mass will experience a greater acceleration, and the object with less mass will experience a smaller acceleration, d. the object with greater mass will experience a small acceleration, and the object with less mass will experience an even smaller acceleration.

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?

Both independent and dependent clauses