Explain and describe how Conservation of Mechanical Energy can be computed. Explain thoroughly and step-by-step, include diagrams and formula to support your anser.
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Explain and describe how Conservation of Mechanical Energy can be computed. Explain thoroughly and step-by-step, include diagrams and formula to support your anser.
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- What do you understand by conservation of mechanical energy? State one condition under which mechanical energy is conserved?Topic: General PhysicsMultiple choice only please answer everything thanksPlease solve the following problems using energy considerations only 2. A person stands at a height, h above the ground on a cliff edge. They decide to swing on a 30.0-m long vine initially inclined at an angle of 37.0° with the vertical. a) What is their speed at the bottom of the swing (a) if he starts from rest? b) What is their speed at the bottom of the swing if he pushes off with a speed of 4.00 m/s? ate.
- 9. Kinematics, Forces, and Energy Two blocks of mass ma and mg are connected through a pulley tension system as seen in the figure on the right. The string is massless and the pulley is massless and frictionless. There is no friction between block A and the ground. Block B starts at a height h above the ground. Both blocks are released from rest. h (a) Use energy to find an expression for the speed of the block just before it hits the floor. (b) Use forces and kinematics to find an expression for the speed of the block just before it hits the floor. (c) Sensemaking: Compare your two answers. How do you know they are right or wrong?Question 12NOTES ASK YOUR TEACHER PRACTICE ANOTHER (a) What is the efficiency of an out-of-condition professor who does 1.90 × 105 J of useful work while metabolizing 500 kcal of food energy? (b) How many food calories would a well-conditioned athlete metabolize in doing the same work with an efficiency of 15%? |kcal Additional Materials | Reading
- How much kinetic energy will a 70 kg diver have when he reaches the water after jumping off a 5.0 m high dive? IN JOULES REMEMBER TO SHOW ALL UNIT CONVERSIONS USING PARENTHESIS METHOD AND SHOW ALL YOUR WORK!Assignment 3 Energy and Work GRASS means Your work must be clear to read. Clearly label all cases (a, b). Show all steps in GRASS format. given/required/analysis/solution/statement. You can type your solutions and answers, but neat handwriting is perfectly acceptable. Please submit your assignment as ONE PDF file on D2L. I do not accept any assignments via email after the due date. 17 Problem: An applied force of 20 N accelerates a block across a level, frictionless surface from rest to a velocity of 8.0 m/s in a time of 2.5 s. Calculate the work done by this force.How do we calculate the work done by a spring on an object in an incline? You may include diagramsor equations to better explain your answer.