- Measurement 1.6.7 8 Measurement 2: 6.95 Measurement 3.4.2 g Measurement 4:3.2 g The data shows repeated measurements of the same object which has a known mass of 6.68 grams. The above measurements would be accurate accurate and precise precise neither accurate nor precise
- 7. One of the most recent details discovered by investigators was the type of appliances being used in the victim's kitchen. Using the information below, determine if the appliance should have been plugged into the outlet: a. An airfryer frequently used by the homeowner has a current of 8 A and a resistance of 23.4 Q What is the voltage of the airfryer? Show your calculations and include the proper units: (3 marks)
- 8. Explain what are decibel levels, give an example of decibel levels with its symbol AND name the tool that represents it visually.
- What is a substance that does not easily transfer electric charges? a. Molecules b. Conductor c. Insulator d. Atoms
- Use with textbook pages 312-321. Nuclear fission and fusion reactions Remember the following two rules when working with nuclear equations: I. The sum of the mass numbers does not change. II. The sum of the charges in the nucleus does not change. Identify each nuclear equation (nuclear fission or nuclear fusion) and then comp nuclear equation. (}_{0)^1n+_(92)^235U... cdot _(54)^143Xe+_(38)^90Sr+3^1_(n)^1n 2. (}^2H+underline { )... ... _(1)^1H+_(1)^3H 3. (}_{0)^1n+_(92)^235Uarrow _(60)^152Nd+underline ( )+4_(0)^1n 4. (}_{2)^2H+_(1)^2H arrow _(2)^3He+underline ( ) 5 (}_{0)^1n+underline ( )... ... _(37)^90Rb+_(55)^143Cs+3_(0)^1n 6 (}_{1)^2H+_(1)^3H arrow _(2)^4He+underline ( ) 7. (}_{0)^1n+_(100)^256Fm arrow underline ( )+_(54)^140Xe+4_(0)^1n 8 (}_{0)^1n+_(92)^235Uarrow _(39)^106Y+underline ( )+3_(0)^1n 9. (}_{0)^1n+_(92)^235U... cdot _(49)^115In+_(43)^118Tc+ 0^n 10. (}_{0)^1+underline ( )... ... _(52)^137Te+_(42)^100Mo+3_(0)^n
