SOMEONE PLEASE HELP ME WITH THIS SCIENCE/PHYSICS TEST QUESTION. THE CORRECT ANSWER SHALL BE MARKED AS BRAINLIEST AND I WILL ALSO FOLLOW YOU. (THE GRAPH IS IN THE PHOTO) THANKS XOXO

Emma wanted to investigate the resistance of a sample of a material.
Graph 1 shows how the resistance changes with length.
(the graph in the photo)

Length in centimetres
(i) The current through a 20 cm length of conducting putty was 0.15 A.
Use Graph 1 to find the resistance of a 20 cm length of conducting putty.
Resistance = ohms

thanks

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?