Problem 6.56 A force with magnitude given by F = a/a – bx² acts in the x-direction, where a = 27.3 N · m-1/2and b = 3.27 N/m², Part A Find the work this force does on an object moving from x = 0 to x = 2.00 m. Express your answer with the appropriate units. Templates Symbolš uado redo reset keyboard shortcuts help, Wo→2.00 = Value Units Submit Request Answer Part B Find the work this force does on an object moving from x = 2.00 m to x = 3.75 m. Express your answer with the appropriate units. Templates Symbols undo redo reset keyboard shortcuts help W2.00→3.75 = Value Units Submit Request Answer

1. A ball rolls off a table. +X X = 0 a. How long does it take to fall 0.80 meters to the floor? Show all of your work. b. How far does it travel horizontally while it's falling? Its initial horizontal velocity is 2.5 meters / second. Show all of your work. 2.5 m/s 0.80 m

(Figure 1) shows a rope with 15.0 N tension pulling a 2.0 kg physics textbook up a frictionless slope with angle . The book's speed after being pulled 2.0 m is 3.0 m/s. What is the angle ø? Figure Ar < 1 of 1 v₁ = 0 m/s This could be solved with Newton's laws and kinematics, but we will use the energy principle. How much work does tension do on the book as it moves 2.0 m? Express your answer with the appropriate units. ► View Available Hint(s) WT = Submit Part B W₁ = μà Submit Value How much work does the normal force do on the book as it moves 2.0 m? Express your answer with the appropriate units. ► View Available Hint(s) μÀ Units Value ? Units ? Activate Windows Go to Settings to activate Window

I ONLY NEED ANSWER TO PART B

Figure Energy (J) 4- 3 2 1 0- -1 -2 + K₁ + U₁ + W ext = K₁ + Uf + AEth 1 of 1

physics homework problem that doesn’t have an example type in the book (i do not earn points on homework, they are just practice for my quiz)

i need to know if i got this right my answer was 2200 and magnitude was 400 please explain if i got this wrong

Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30° above the floor. The tension is a constant 28.0 N and the coefficient of friction is 0.210. Part A Use work and energy to find Paul's speed after being pulled 2.90 m Express your answer with the appropriate units. 1.93 Submit μA m S ? Previous Answers Request Answer X Incorrect; Try Again; 26 attempts remaining

Having trouble coming to a conclusion for this question.

Hand not in system K, + Ug, + U + W - K, + Ug,+ Uy + AEstem !3! 5. The cart starts at rest but is moving rapidly when released by the hand, and is about to crush a piec of chalk. Energy Conservation Equation Initial Hands aot in system K; + g, W - K; + Ug,* + AEgerm Final Bottom of bex and carpet are warmer.- 6. A person, not in the system, drags a heavy box across a level floor. Energy Conservation Equation