+ Center of Gravity and Centroid Learning Goal: To be able to find the centroid, center of mass, and center of gravity for lengths, areas, and volumes of simple, uniform objects. The centroid of an object is the object's geometric center. For objects of uniform composition, the centroid is also the object's center of mass. Part A Find the center of mass for a quarter of a uniform sphere in terms of the outside radius of the sphere, R. Express your answers in terms of R separated by commas. You did not open hints for this part. ANSWER: x, y, z= Part B = 2x +4 and y = (2x-3)²+1. Find the centroid for an area defined by the equations y Express your answers numerically in meters to three significant figures separated by a comma. x A 14 12 10- 8 6 4 2 R y=2x+4 -y-(2x-3)²+1

Your bicycle has 10 gears, from low (easiest to pedal) to high (hardest to pedal). When you first start peddling, you usually use a low gear to accelerate from standing and then shift to a higher gear when you are at a high cruising (ground) speed so that you are always pedalling against the same resistance. One morning you forget to shift down and you try to start in a very high gear. Despite the fact that you usually go fast in high gear, you can't get anywhere at all. The next day you remember to start in low gear, but you forget to shift up. So you ride to school at the same ground speed as usual but in low gear all the way. Despite the fact that there is less resistance to pedalling in the low gear, your legs get more tired than usual.  Using you knowledge of force and resistance explain why they are more tired? Explain which skeletal fibers will be utilized in this case?

Solve it quickly please

! Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. At an intersection car B was traveling south and car A was traveling 30° north of east when they slammed into each other. Upon investigation, it was found that after the crash, the two cars got stuck and skidded off at an angle of 10° north of east. Each driver claimed that he was going at the speed limit of 50 km/h and that he tried to slow down, but couldn't avoid the crash because the other driver was going a lot faster. The masses of cars A and B were 1500 kg and 1200 kg, respectively. 10° 30° VR Determine the speed of the faster of the two cars if the slower car was traveling at the speed limit. The speed of the faster car was km/h.

The only correct answer is that you need to explain enough for me ok I don't want you to get tired

solve question 5

-write legibly and show complete solution-write the answers on 3 decimal places in meters

solve question 7

Please help answer all subparts thank you!

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