B) A given vector is represented with an arrow in figure 1.1. State the direction of force and convert the force into Cartesian format. (3 marks) c) A body of mass 10 kg is dropped from a height of 20 m. Calculate;
i) The velocity before heating the ground. (1 mark)
ii) The kinetic energy by the time of heating the ground. (2 marks)
d) Calculate the refractive index of water given that the velocity of light through water is .

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.