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• ### 1 A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given byx = 18.1tandy = 3.64t −4.57t2,where x and y are in meters and t is in seconds.(a) Write a vector expression for the ball's position as a function of time, using the unit vectors and .(Give the answer in terms of t.) =By taking derivatives, do the following. (Give the answers in terms of t.)...

• ### A golf ball is hit off a tee at the edge of a cliff. Its x... A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by x = 17.5t and y = 3.80t-4.90t. where x and y are in meters and t is in seconds (a) Write a vector expression for the ball's position as a function of time, using the unit vectors i and j. (Give the answer in terms of t.) By taking derivatives, do the following. (Give...

• ### A golf ball is hit off a tee at the edge of a cliff. Its x... A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by the following expressions. x- (20.0 m/s)t y (5.20 m/s)r-(4.90 m/s2)r2 (a) Write a vector expression for the ball's position as a function of time, using the unit vectors i and j. (Use the following as necessary: t.) (b) By taking derivatlves, obtain an expression for the velocity vector v as a function of time...

• ### If the number is a decimal please include 4 digits past the decimal point if available.... If the number is a decimal please include 4 digits past the decimal point if available. 1. -12 points PSE6 4.P.002. My Notes A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by the following expressions. x (20.0 m/s)t y (4.90 m/s)t -(4.76 m/s2)t2 (a) Write a vector expression for the ball's position as a function of time, using the unit vectors i and...

• ### 2O6 points SerPSE9 4.P.009 MLFB My Notes Ask Your h swimming in a horizontal plane has... 2O6 points SerPSE9 4.P.009 MLFB My Notes Ask Your h swimming in a horizontal plane has velocity Vi (4.00 i + 1.00 j) m/s at a point in the ocean where the position relative to a certain rock isi- (16.01 -3.00 1) m. After the fish swims with constant acceleration for 19.0 s, its velocity is v (15.01-1.00 j) m/s. (a) What are the components of the acceleration of the fish? m/s2 m/s2 b) What is the direction of its...

• ### 2. -4 points My Notes Ask Your Teacher A football is thrown horizontally with an initial... 2. -4 points My Notes Ask Your Teacher A football is thrown horizontally with an initial velocity of (16.0 m/s)k. Ignoring air resistance, the average acceleration of the football over any period of time is (-9.81 m/s?) (a) Find the velocity vector of the ball 1.79 s after it is thrown す=( m/s)x - m/s)y (b) Find the magnitude and direction of the velocity at this time Magnitude Direction obelow horizontal

• ### 0/5 POINTS PREVIOUS ANSWERS SERPOP5 13.P.010.WI. MY NOTES ASK YOUR TEACHER A transverse wave on a... 0/5 POINTS PREVIOUS ANSWERS SERPOP5 13.P.010.WI. MY NOTES ASK YOUR TEACHER A transverse wave on a string is described by the following wave function. y = 0.100 sin (5x + 3t where x and y are in meters and t is in seconds. (a) Determine the transverse speed at t = 0.230 s for an element of the string located at x = 1.80 m. -0.554 X Given the equation for the vertical position of elements of the string as...

• ### Your last submission is used for your score. -/3 points Y SERCP8 16.P.001. My Notes Ask... Your last submission is used for your score. -/3 points Y SERCP8 16.P.001. My Notes Ask Your Teacher A uniform electric field of magnitude 365 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 3.30 cm (a) What is the work done by the field on the electron? (b) What is the change in potential energy associated with the electron? (c) What is the velocity of the electron? magnitude m/s...

• ### Please answer the last 4 bullet points step by step. Again the last 4 bullet points.... Please answer the last 4 bullet points step by step. Again the last 4 bullet points. k III.pdf 1) Up until now we have always ignored air resistance. We should now add . Let us just think of simple 1-dimensional problem, dropping a ball of mass m from a height H but 2 with air resistance. We can model the air resistance as a force proportional to the velocity, fair = bu. The coefficient b is a constant. (For this...