(27.0 m )i - (24.0 m j along a straight ):-( A floating ice block is pushed through a displacement d embankment by rushing water, which exerts a force F 298 N 183 N on the block. How much work does the force do on the block during the displacement? Number 3654 Units
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- 1. Given the illustration on the right, compute the work done by the following: a. Tension b. Frictional force 650 ft 1.0 kNA roller-coaster car has a mass of 500 kg when fully loaded with passengers (a) If the car has a speed of 20.0 m/s at point A, what is the speed at point B. 15.0 ml 10.0 m001 to il ow m, = 500 g me. m, = 200 g hg ho = 3.00 m Diagram for problem 52. Diagram for problem 53. *53. What is the total energy of the Atwood's machine in the position shown in the diagram? If the blocks are released and m falls through a distance of 1.00 m, what is the kinetic and potential energy of each block, and what are their velocities?
- Please show complete, organized, and correct work for each question. You’re welcome to use your book and notes, but no calculators.1. You are driving a late model convertible car at the 65 mph speed limit with its soft flexible roof closed up and the windows closed. You observe that the roof a. bows inward.b. is no different from when the car was at rest.c. bows outward.d. bows inward only when you are driving uphill.e. bows inward only when you are driving downhill.Part A A spring of force constant 240.0 N/m and unstretched length 0.220 m is stretched by two forces, pulling in opposite directions at opposite ends of the spring, that increase to 15.0 N. How long will the spring now be? Express your answer in meters. V ΑΣφ m = 1 Submit Request Answer Part B How much work was required to stretch it that distance? Express your answer in joules.Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 9. No work can be done when the force of an object is perpendicular to the displacement of an object 10. As the velocity of an object halves , the kinetic energy halves.
- A 360 kg piano slides 2.6 m down a 24° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline (see the figure). Ignore friction. Part A Determine the force exerted by the man. Express your answer to two significant figures and include the appropriate units.TRUE or FALSE. Read and analyze each statement carefully. Click TRUE if the given statement is true, otherwise, click FALSE. 4) An activity can be considered work in Physics if there are force and displacement. True False7. The cart, in the diagram below, travels .80 m down the ramp with uniform acceleration in 1.5 seconds. The initial velocity(v.) is 0 m/s. You must show work. Determine the following. If answer requires a calculation, you must show work. The initial velocity(v.) is 0 m/s. a. Average Velocity b. Acceleration c. The dots in the strips below represent the position of the cart as it rolls down the .80- meter-long ramp. The time intervals between the dots are equal. Which of the strips best represents the motion of the cart down the ramp? Justify your choice. d. Which two strips represent an object moving at constant velocity? Justify your answer.
- Minimum drag occurs at the mimimum value of the following equation D = СD+aС² CL Where D is the drag, C₁, the coefficient of lift and CD, k are constants Define the value of C₁ for which the minimum value of drag occurs. Then calculate this value for CD = 0.8 and a = 6.19 Give your answer to 3 decimal places.Problem 1: A) Energy Methods Look at the below system. Using the conservation of energy method, solve for the governing equation of motion for the system. Put a box around your final answer. Also, put a box around your equations for the potential and kinetic energy of the system. Assume the system’s springs are initially unstretched (i.e., assume that there is no gravity until t = 0 [s]). B) Numerical Methods Using ode45, your answer to problem 1, and the following initial conditions and system parameters, plot the response of the above system in MATLAB for at least 5 complete oscillations, and no more than 20 oscillations. m = 72 (if your last 2 digits are 00, than assume m = 1) [kg] k1 = 673 [N/m] k2 = 880 digits of your student ID [N/m] g = 9.81 [m/s2] x0 = 0 [m] v0 = 0 [m/s]Part A Ignoring the mass of the spring, what is the mss mmm of the fish? Express your answer in kilograms.