se 3: Class - Da Paco rode his skateboard up a ramp for a distance of 3.8 meters. If the ideal mechanical advantage of the is 2, how far above the ground was Paco? ramp 4: The inventor of a new machine claims that its actua mechanical advantage is 4. Literature on the machi reports its input distance is 81 meters and its outpu distance is 27 meters. Find the machine's ideal mechanical advantage, and determine whether the xar developer's claim could be true.

se 3: Class - Da Paco rode his skateboard up a ramp for a distance of 3.8 meters. If the ideal mechanical advantage of the is 2, how far above the ground was Paco? ramp 4: The inventor of a new machine claims that its actua mechanical advantage is 4. Literature on the machi reports its input distance is 81 meters and its outpu distance is 27 meters. Find the machine's ideal mechanical advantage, and determine whether the xar developer's claim could be true.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

3. There are two blocks connected by a rope which is wound over an idealpulley. This is depicted in Figure 3. The blocks are released from rest.When the bottom block hits the ground, the top block is still to the leftof the pulley.(a) When the bottom block hits the ground, how fast is it moving?(b) What is the work done by gravity on the bottom block, as it movesfrom its initial position to the ground? What is the total work done bygravity on the top block during the same time?(c) What is the tension in the rope, as the bottom block falls?(d) Using the work-energy theorem, compute the velocity of the bottomblock as it hits the ground. Make sure you obtain the same result as inpart (a).
allison exerts a force of 186 N on a lever to raise a 2.70 x 10^3 N object to a height of 29.0 cm. If the efficiency of the lever is 83.3 percent, how far does Ayesha move her end of the lever?
Question 7.Using the following illustrations calculate the required power under the following condition. A 65 kg box is moved upwards along a plane inclined at 15 with a steady speed of 10m/s. The force of fraction is 100 Newton. W=mg 150
Needs Complete solution with 100 % accuracy.
Attempt 3 Steven carefully places a m = 1.15 kg wooden block on a frictionless ramp so that the block begins to slide down the ramp from rest. The ramp makes an angle of 0 = 57.3° up from the horizontal. Which forces do nonzero work on the block as it slides down the ramp? V gravity spring O friction O normal How much total work has been done on the block after it slides down along the ramp a distance of 1.85 m ? total work done on the block: Nancy measures the speed of the wooden block after it has gone the 1.85 m down the ramp. Predict what speed she should measure. m/s final speed after sliding from rest:
ti=0 W = = Ugf m= 13 ib kg Use the values given in the problem. How much (assume the barbell is at rest in the "final" to =0,80 s Yf =0.70m work does the position) weightlifter do? Vi=4,0m/s Use the values given in the problem. How much work does the cable do? K; + Ug. + W = 0 Uf =0
What is the average useful power output of a jackhammer that does 950 J of useful work in 2.2 hours? Express your answer in W.
Please answer 12 only, asap
When using an inclined plane with an angle Θ from horizontal as a machine to lift an object, and given a coefficient of friction μ for the surface of the incline, show that the efficiency of the plane is given by the mathematical expression shown with the label
An object is suspended by two cables attached at a single point. The force applied on one cable has a magnitude of 110 pounds and acts at an angle of 50°. The force on the other cable is 60 pounds at an angle of 160°. Part A: Write each vector in component form. Show all necessary work. Part B: Find the dot product of the vectors. Show all necessary calculations. Part C: Use the dot product to find the angle between the cables. Round the answer to the nearest degree. Show all necessary calculations.
An elevator engine lifts a total load of 3,659 N weight with constant speed of 2.8 m/s. What is the power consumption of the elevator? Express your answer in watts. plz help and use g = 9.8
Ace Industries has a 50 kW air compressor that operates at full-load (LF = 1), all day for 365 days per year. the motor for the air compressor cost €1400, the motor efficiency is 90%, and electricity costs €7.00/kW/month and €0.10/kWh, how much does it cost to operate the air compressor for one year?