diameter 18.0 cm as shown in the figure below. The cord has a linear density of 10.0 g/m. A single strand of the cord extends 16.0 cm from the outer edge of the spool. The head of a grass string trimmer has 100 g of cord wound in a light, cylindrical spool with inside diameter 3.00 cm and outside 16.0 cm +3.00 cm 18.0 cm- (a) When switched on, the trimmer speeds up from 0 to 2 250 rev/min in 0.230 s. What average power is delivered to the head by the trimmer motor while it is accelerating?

A stone is thrown into a body of still water and created ripples in the form of concentric circles. If the radius increases at a rate of 2 m/s, at what rate is the area increasing when the radius is 2m? Group of answer choices a. 4 pi b. 8 pi c. 12 pi d. 6 pi

A rod has a 1.3-m-long section that is cast iron and a 2.6-m-long section that is aluminum as shown in the diagram below. The diameter of the cylindrical rod is 0.40 cm. Ycast iron = 100 x 1010 N/m2 and Yaluminum = 7 x 1010 N/m2. How much elongation is produced in the rod when it is subjected to a force of 4.3 × 103 N? cm 0,20 cm Rod 1 Rod 2 -1.3 m 2.6 m

I need the answer as soon as possible

I want to know how much glycerin I can pour into a cylinder so that it doesn't spill when I insert a rod. What is the amount of glycerin adequate to completely cover the cylinder when the rod is inserted? Cylinder measurements  outer radius r1 r1 = 4 in inner radius r2 r2 = 3 in outer circumference C1 C1 = 25.132741228718 in inner circumference C2 C2 = 18.849555921539 in height h = 8 in wall thickness t = 1 in Rod measurements  radius r = 0.5 in height h = 7 in insertion height ( heights that will be inside the cylinder) h= 5 in  volume V = 5.49778714 in3   Glycerin  Coefficient of volume expansion β(1/ºC): 500x10^-6   Coefficient of volume expansion β(1/ºC)

TUBULAR TALLY The Perseverance Mars rover is designed to collect rock samples that will eventually be brought to Earth for further study. This would be the first time we've ever brought back samples from Mars! After scientists identify an interesting rock they would like the rover to collect, Perseverance uses a special coring bit to drill out a rock cylinder 13 mm in diameter. As the rover drills, the rock core moves into one of 38 available tubes that will store the rock sample - sealed until it is opened one day in a lab on Earth. If the coring bit collects a rock cylinder 60 mm in length, what is the volume of the rock in the sample tube?

Verify that the SI unit of hpg is N/m2.

H-1 In Fig. H-2, A water tank is 8 m in diameter and 12m high. If the tank is to be completely filled determine the minimum thickness of the tank plating if the stress is limited to 40 MPa. 8m pgh Fig. H-1

10

P-3 Please I need help with this question needed very clearly and step-by-step explanation and NEEDED ONLY HANDWRITTEN PLEASE, will be really appreciated for your help. NEEDED ONLY HANDWRITTEN SOLUTIONS