NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Bucket A and block Care connected by a cable that passes over drum B. Drum B rotates slowly counterclockwise and the coefficients of friction at all surfaces are µμ = 0.35 and μ = 0.25. Given: W= 120 kg. m C W 30 Determine the smallest combined mass m of the bucket and its contents for which block C will remain at rest. The smallest combined mass m of the bucket and its contents for which block C will remain at rest is 28.896 kg.

We often think of friction and air resistance as forces that we want to minimize because they can hinder the motion of an object.  But they are not always undesirable, and in fact, can be an essential element in a machine or process. Identify one or two applications that depend on friction and air resistance.  Explain how friction or air resistance works in those situations and what would happen if there were no friction or air resistance.  Your initial post should be 75-150 words in length and is due on Sunday.

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If you were performing this experiment in an in-class laboratory, you would be given one or more small iron balls. These would be utilized with a variant of the Free-Fall apparatus shown in the graphic below.        (INSERT PICTURE HERE)                     You would first raise the upper black clamp to the desired height above the middle clamp. Then you would place the ball firmly in the upper clamp. Next, you would turn on the timer and adjust its initial reading to zero. After you release the ball, it falls towards the middle clamp. When it encounters this clamp, the timer stops and you can read the time of fall.             Results are usually within 10% of the standard value of g. Here, in this online version, I will supply values of height (h) and time (t). First, calculate the average time (tav) for each height and use it as described next. You will use the third equation above to calculate the value of gravitational acceleration (g) in each case. Then, you will determine the…

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1. Apply Newton's second law to find the formula for the acceleration of the system. Ignore friction and the masses of the pulley and cord. Express your answer in terms of the variables mAmB, and appropriate constants.   2. Apply Newton's second law to find the formula for the tension in the cord. Ignore friction and the masses of the pulley and cord.

Analyze the problem below then answer the following questions B. What is the magnitude of the Torce in standard form? The following force vectors are acting on an object from different directions. A = (101 – 50k)N, B = (301 + 25/)N, and ĉ = (-15) + 20k)N. .Roundoff at three decimal places, e.g. "233.401N"No space between characters and if answer A.What is the resultant vector in unit vector form? is whole number, no need to add decimal places. If answer is too large or too smallI (more than 1,000,000 or less than 0.0001) .Write answers without the express answer as Scientific "hat", refer to exact example notation in exact sample format "3.2€23N" or "3.2e-15N" or format "(-7i+2j-3k)N" No spaces "-3.2€15N". This format means between characters. If result is 3.2x102"N etc. "Ik", omit the number “1". If the component is zero, no need to Your answer write. Your answer (c.What is the angle and direction of the vector along the x-y plane? DWhat is the angle and direction of the vector along…

Please help. How would one go about finding the value for n from a slope in the following equation. In the previous step of an experiment, we determined the drag coefficient with n=2. So in this next step, all values are known except for n.

C. Assimilation Direction: Do as instructed. 1. Consider the diagram at the right in answering the next three questions. Five locations along a roller coaster track are shown. Assume that there are negligible friction and air resistance forces acting upon the coaster car. Rank the five locations in order of increasing PE (smallest to largest PE). Use and or = signs. A A_ C E D C D В В A B VIL ASSES SAMENIT

A small remote-control car with a mass of 1.53 kg moves at a constant speed of v = 12.0 m/s in a vertical circle inside a hollow metal cylinder that has a radius of 5.00 m Part A - (Figure 1) You may want to review (Page). What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point A (at the bottom of the vertical circle)? For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Uniform circular Express your answer in newtons. motion in a vertical circle. ? \FAI = N Figure 1 of 1 В Submit Request Answer Request Answer v = 12.0 m/s Part B 5.00 m What is the magnitude of the normal force exerted on the car by the walls of the cylinder at point B (at the top of the vertical circle)? Express your answer in newtons. v =12.0 m/s A \FB| = N