Multiple Choice (20 X 3 = 60 plats) Ident 1he choice thar bear completes the sta
ID: 1795778 • Letter: M
Question
Multiple Choice (20 X 3 = 60 plats) Ident 1he choice thar bear completes the statement or auwers the 1.The lis lengofthe cylinder. The radius of the cylinder was measured as r-8.2 ± 0.1 cm . and 1-6203 aa The uncertainty cylinder is: in volume for this 0.003 cm c. d. 94285 cm 25.092 cm b. 0.07 cm 2. When a measurement was being made, it was found that there were two different source of uncertainties uncertainty was measured to be 025 cm, and the other was 0.95 cm. What is the total uncertainty in the measurement? a. 1.2 cm c. 09823 cm d. 0.7 em b. 0.965 cm 3, How would velocity vs, time graph? a. straight line parallel to time axis b. straight line parallel to velocity axis a graph of an object moving with constant accelaration along a horizontal surface look like on a c. straight line at some angle to time axis d a parabola A cart was placed in a horizontal track and was connected with a string to a mass hanging over a pulley. If the hanging mass is released the cart wil accelearate with accelaration a. equal to accelartion due to gravity b. less than accelaration due to gravity d. equal to zero 4. c. more than accelaration due to gravity -5. A projectile, when fired horizontally, is found to have a speed of 3.55 m/s, when fired at an angle of 57° above the horizontal and at a height of 0.95 m, it is in the air for 0.839 seconds. What is the expected range of the projectile? a. 2.98 m b. 1.62 m c. 2.50 m d. 1.90 m 6. A projectile is fired at an angle above the horizontal. The x-axis component of its velocity, v, as it travels through its trajectory. is zero d. is always equal to v changes due to the effects of gravity c. a. b. remains the same A projectile launcher is measured to be 1.168 meters from the floor. When fired horizontally in relation to the floor, the projectile travels horizontally 2.085 meters before it strikes the floor. What is the horizontal speed of the projectile? a. 8.75 m/s 7. b. 6.04 m/s c. 4.27 m/s d. 2.39 m/sExplanation / Answer
Error in the calculation of the volume will be
dV/V = Pi (2 dr/r + dl/l)
hence
dV = 94.236 cm^3
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