You throw a 3.00 N rock vertically into the air from ground level You observe that when it is 150 m above the ground, it is traveling at 24 0 m/s upward Part A Use the work energy theorem to find the rock's speed just as it left the ground Express your answer with the appropriate units. v₂ = Submit Value Request Answer < Return to Assignment Units Provide Feedback ?
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- A 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 SubmitYou lifted 1 kg box from the ground up to the top of a 2 meter long table. Air resistance has magnitude 2 N. Bucket is starting at rest, but is moving at 2.0 mi/sec when it reaches the top of the table. Please calculate the following: 1) Draw the free body diagram of the bucket. 2) Calculate the work done by each force in your free body diagram. 3) Calculate the work done by the air resistance 4) Calculate the work done by gravity AND by youA force acts on a particle that moves along the X axis and varies with position according to the graph shown. if the mobile starts from the origin. a. calculate the work done by the force when it moves from position x=8m to position x= 13m. b. find the average power that force develops if it takes 0.5 seconds to reach the position x= 2m
- 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 >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 remainingplease help
- 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 ConstaPart A With what minimum speed must you toss a 180 g ball straight up to just touch the 13-m-high roof of the gymnasium if you release the ball 1.2 m above the ground? Solve this problem using energy. Express your answer with the appropriate units. HA Umin = Value Units Submit Request Answer Part B With what speed does the ball hit the ground? Express your answer with the appropriate units. μΑ Value Units
- 3Several physical situations are described below. For each situation, simplify the work-energy equation by canceling any zero terms and any energy terms (whether KE or PE) which are unchanging. Explain each term which gets canceled. A Hot Wheels car starts from rest on top of an inclined plane and rolls down the incline through a loop and along a horizontal surface. Friction and air resistance have a significant effect on the car. Simplification of Work-Energy Equation KEi + PEi + Wnc = KEf + PEfA small block of mass 200 g starts at rest at A and slides along a curved frictionless track surface to B, then slides along the horizontal surface a distance 10 m before coming to rest at C due to friction between B and C. Find its speed at B and the work done by friction along the horizontal surface from B to C. 4.0 m B -10 m-