Mathematics, physics, chemistry and engineering basics for first-year students – 10 questions.1. The derivative of sin x with respect to x is cos x -cos x tan x sec x2. The SI unit of force is Joule Newton Watt Pascal3. The value of the determinant |2 3; 1 4| is 5 11 8 -54. Which of the following is a scalar quantity? Velocity Force Mass Acceleration5. The pH of pure water at 25 °C is 0 7 14 16. Hardness of water is mainly caused by salts of Sodium and potassium Calcium and magnesium Iron and copper Zinc and lead7. The integral of 1/x dx is x²/2 + C ln|x| + C 1/x² + C eˣ + C8. Speed of light in vacuum is approximately 3 × 10⁸ m/s 3 × 10⁶ m/s 3 × 10⁵ km/s² 1.5 × 10⁸ m/s9. In engineering drawing, the first angle projection places the plan Above the elevation Below the elevation To the left of the elevation To the right of the elevation10. Which programming construct repeats a block of code? if switch for returnSubmit Answers Reset
