Class Management | Help Week9 Begin Date: 7/27/2023 12:01:00 AM -- Due Date: 8/8/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (5%) Problem 1: During the spin cycle the time dependent angular speed of a washing machine drum is given by the equation w(t) = at +. bt - of where a = 2.9 rad/s2, b = 0.25 rad/s' and c = 0.045 rad/s . At time t = 0 s, a point P on the washer drum is located at 0 = 2.2 rad. 25% Part (a) Write an equation for the angular acceleration of the drum, as a function of time, in terms of the given parameters. a(t) = a+2bt-4ct / Correct! 25% Part (b) What is the angular acceleration, in radians per square second, at time t = 3.3 s? a(t) = - 1.92 a(t) = -1.920 Correct! * 25% Part (c) Write an equation for the angular position of the point P, as a function of time, in terms of the given parameters. O (t) = 2.2 + a/212+ 6/3+3 - c/5 + Grade Summary Deductions 0% Potential 100% P 60 ( ) 7 8 9 F HOME Submissions C Attempts remaining: 998 b 4 5 6 (0% per attempt d g ' h 1 2 3 detailed view 0% k m 0 END n P t VO BACKSPACE DEL CLEAR Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback 25% Part (d) What is the angular position of the point P on the drum, in radians, at t = 3.3 s? 0(t) = 17.46 - Correct! All content @ 2023 Expert TA, LLCClass Management | Help Week9 Begin Date: 7/27/2023 12:01:00 AM -- Due Date: 8/8/2023 11:59:00 PM End Date: 8/10/2023 11:59:00 PM (5%) Problem 20: A rod of mass M= 103 g and length L = 38 cm can rotate about a hinge at its left end and is initially at rest. A putty ball of mass m = 15 g, moving with speed V= 5 m/s, strikes the rod at angle 0 = 240 a distance D = L/2 from the end and sticks to the rod after the collision. D M Otheexpertta.com 33% Part (a) What is the total moment of inertia, I, with respect to the hinge, of the rod-ball-system after the collision? 1 = ML- + mD2 - Correct! 33% Part (b) Enter an expression for the angular speed @ of the system immediately after the collision, in terms of m, V, D, 0, and I. w = m V D cos(0)/1 / Correct! 33% Part (c) Calculate the rotational kinetic energy, in joules, of the system after the collision. Grade Summary Erot = 1.454 * 10- 71 Deductions 0% Potential 100% sin() cos tan() 7 8 9 HOME Submissions Attempts remaining: 991 cotan() asin( acos( 4 5 6 (0% per attempt) detailed view atan() acotan() sinh() 0% A cosh() tanh() cotanh() END 0% Degrees O Radians VO BACKSPACE CLEAR 10% 10% Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedbackClass Management | Help Week10 Begin Date: 8/2/2023 12:01:00 AM -- Due Date: 8/10/2023 11:59:00 PM End Date: S/10/2023 11:59:00 PM (10%) Problem 4: A satellite is orbiting around a planet in a circular orbit. The radius of the orbit, measured from the center of the planet is R = 1.8 x 10' m. The mass of the planet is M= 7.2 x 1024 kg. V theexpertta.com D A 25% Part (a) Express the magnitude of the gravitational force F in terms of M. R, the gevitational constant G, and the mass m of the satellite. F = Grade Summary Deductions 0% Potential 100% a B () 7 8 9 Submissions d g G 4 5 6 Attempts remaining. 999 (0% per attempt) h i 2 detailed view m M P + - 0 R V VO Submit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 1 Feedback: 0% deduction per feedback A 25% Part (b) Express the magnitude of the centripetal acceleration a of the satellite in terms of the speed of the satellite v, and R. A 25% Part (c) Express the speed v in terms of G, M and R. A 25% Part (d) Calculate the numerical value of v, in m/s. All content @ 2023 Expert TA, LLCClass Management | Help Week10 Begin Date: 8/2/2023 12:01:00 AM -- Due Date: 8/10/2023 11:59:00 PM End Date: S/10/2023 11:59:00 PM (5%) Problem 5: On the surface of the Moon an astronaut has a weight of Fo = 110 N. The radius of the Moon is Rm = 1.74 x 105 m, the gravitational constant is G = 6.67 x 10" N (m/kg) and the mass of the Moon is Mm = 7.35 x 1022 kg. A Calculate the mass of the astronaut, m, in kilograms. m = Grade Summary Deductions 0% Potential 100% sin() cos() tan() It ( ) 7 8 9 Submissions cotan() asin() cos() E 4 5 6 Attempts remaining: 999 0% per attempt) atan() acotan() sinh() 1 2 3 detailed view cosh( tanh() cotanh() + 0 Degrees O Radians VO Submit Hint I give up ! Hints: 0% deduction per hint. Hints remaining: 2 Feedback: 0% deduction per feedback All content @ 2023 Expert TA, LLC