A crate slides down a ramp that makes a 20° angle with the ground. To keep the crate moving at a steady speed, Paige pushes back on it with a 60 N horizontal force. Part A How much work does Paige do on the crate as it slides 3.5 m down the ramp? Express your answer with the appropriate units. W = Value Units Submit Previous Answers Request Answer ? X Incorrect; Try Again; 2 attempts remaining
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- Review Istants Sam, whose mass is 72 kg , straps on his skis and starts down a 64 m -high, 20° frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. Part A Use work and energy to find Sam's speed at the bottom. Express your answer to two significant figures and include the appropriate units. µA ? Value Units V = Submit Request AnswerA 1.77 kg book slides 1.25 m along a level surface. The coefficient of kinetic friction between book and surface is 0.145 Part A Find the work done by friction Express your answer with the appropriate units. ? HA Value Units W = Request Answer SubmitReview I A system in which only one particle can move has the potential energy shown in (Figure 1) . Suppose U1 = 88 J. Part A What is the y-component of the force on the particle at y = 0.5 m ? Express your answer to two significant figures and include the appropriate units. µA ? Fy = Value Units Submit Request Answer Part B Figure 1 of 1 What is the y-component of the force on the particle at y = 4 m? Express your answer to two significant figures and include the appropriate units. U (J) U HÀ ? Fy Value Units Submit Request Answer У (m) 5 0 - 1 3 4 Provide Feedback
- Part A A ski tow operates on a slope of angle 15.8° of length 260 m. The rope moves at a speed of 11.3 km/h and provides power for 47 riders at one time, with an average mass per rider of 75.0 kg. Estimate the power required to operate the tow. Express your answer in watts. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of A "power climb". A) ? b |X| х-101 P = W Submit Previous Answers Request AnswerHow much work must you do to push a 12.0 kgkg block of steel across a steel table (μkμk = 0.60) at a steady speed of 1.20 m/sm/s for 5.30 ss ? Express your answer with the appropriate units. What is your power output while doing so? Express your answer with the appropriate units.Part A How much work must you do to push a 13 kg block of steel across a steel table at a steady speed of 1.3 m/s for 5.4 s? The coefficient of kinetic friction for steel on steel is 0.60. Express your answer in joules. %3D push = J Submit Request Answer Part B What is your power output while doing so? Express your answer in watts. ΑΣφ P = W %3D Submit Request Answer Next >
- Part A A child pulls a sled with constant speed pulling the rope at an angle of 30° to the horizontal and drags the sled for 100 m. The friction coefficient is 0.40. What work did the friction force do if the sled's mass is 5.1 kg? Express your answer with the appropriate units. W = 1624.2 J Ć ?Having trouble coming to a conclusion for this question.Part A What is the minimum work needed to push a 980-kg car 350 m up along a 8.0° incline? Ignore friction. Express your answer using two significant figures. VO ΑΣΦ W = Submit Provide Feedback Request Answer ? J
- A 950 IN crate slides 12 m at constant speed down a ramp that is tilted 35°above horizontal. Part A: How much work does gravity do on the crate as it slides the 12 m?Express your answer with the appropriate units. Part B: What is the change in thermal energy?Express your answer with the appropriate units. *The answer is NOT 64071.42 J*A 600 N crate slides 12 m at constant speed down a ramp that is tilted 35° above horizontal. ▼ Part A How much work does gravity do on the crate as it slides the 12 m? Express your answer with the appropriate units. W = Submit Part B Eth μĂ Submit Value Request Answer What is the change in thermal energy? Express your answer with the appropriate units. 9 μÅ Value C Request Answer Units Units ? ? 2 of 82 Review ConstaGot the wrong answer, help.