The volume charge density of the hollow cylinder of length 25 cm, shown in the gure below, is p = 4 x 10’5 i Ifa = m3. 10 cm and b = 15 cm. Find the…

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Can someone help me with these tow Physics questions.?
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Attachment 1
Attachment 2
6. The volume charge density of the hollow cylinder of length25 cm, shown in the figure below, is p = 4 x 10‘5 i Ifa = m3. 10 cm and b = 15 cm. Find the electric field at: ‘a) r = 5 cm / v b) r=12cmc) r=25cm