I need help to write an essay for gr12 physics.

Introduction - Write a brief introduction of what is learned in forces in 1d and 2d, Newton's law with friction, circular motion, and universal gravitation. Do not include equations, it should simply outline major ideas that are learned in this topic. Make sure it's in brief.

Discuss Theory - Discuss key concepts that are learned in the above topics (forces in 1d and 2d, Newton's law with friction, circular motion, and universal gravitation) and wish to highlight. This should be an in depth explanation of the physics concepts and where you can discuss where key equations come from and why they make sense intuitively/conceptually. You can also include diagrams or graphs or anything else that might help clarify and explain the concepts.

Solve Problems that Highlight Concepts - Include clear solutions to problems that you have previously solved that relate to the concepts you are highlighting. You can include short annotations in your solutions so that the problem-solving process is clear and understandable. Problems should be a significant level of difficulty to highlight problem-solving ability and problem-solving techniques.(Note answers are given for the questions below)

Forces in 1d and 2d - A 89 kg rock climber holds himself away from the side of a cliff by pushing against a horizontal branch. His support rope makes an angle of 45o to the horizontal, as illustrated. Assuming that the branch is not pulling down on the rope or taking any of the climber's weight, find the tension in his rope. {fT=1233.47N}

Newtons law with friction - Masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley, shown below. Mass m1 is held at rest on the floor and m2 rests on a fixed incline of 30.0o. The masses are released from rest and m2 slides 1.00 m down the incline in 4.00 s. Determine the coefficient of kinetic friction between m2. [0.043]

Circular motion - Determine the minimum coefficient of static friction needed to allow a penny to sit on a rotating turntable spinning at 33 1/3 rpm. The diameter of the turntable is 0.300 m. The answer should be true for any position of the penny on the turntable. [0.19]

Universal Gravitation -

Calculate the force of gravity on a 1.0 x 105 kg space station situated at each of the following locations. (REarth = 6.37 106 m ; MEarth = 5.97 x 1024 kg)

a) on the Earth's surface [9.8 x 105 N]

b) 128 000 km from the centre of the Earth. [2400 N]

c) 384 000 km from the centre of the Earth (about the distance to the moon) [270 N]

d) 1.5 x 108 km from the centre of the Earth (about the distance to the sun) [0.0018 N]

Diagrams/Multiple Representations - All that are appropriate for the problems you have included.Graphs, bar charts, pie charts, motion diagrams, free body diagrams, interaction diagrams, diagrams of the physical situation. Anything else that might be useful for understanding the physics of the problem. These representations can be qualitative or quantitative in nature. (If i missed any diagrams or multiple representations please make sure you add it, tnx)

Common Mistakes/Misconceptions/Difficulties - For this section include what are the common mistakes that students can make for these concepts and problems (this doesn't include math errors).

Applications to Society, Technology or Environment - How do the above physics concepts presented apply to society, technology or the environment? Make connections to show why physics is useful in our lives.