The length and width of a rectangular room are measured to be 3.764 + 0.005 m and 4.030 + 0.005 m. Calculate the area of the room and its uncertainty in square meters. (Express your answers to the correct number of significant figures.) area 4.015.17 v m2 uncertainty 4 0.03897 x m²

Calculate the following and express the answer in the proper number of significant figures: (3.245x0.035x9.0023)/(4.076×2.01×42.3)= Next Previous

The numbers 2.745 and 2.735 on rounding off to 3 significant figures will give (a) 2.75 and 2.74 (b) 2.74 and 2.73 (c) 2.75 and 2.73 (d) 2.74 and 2.74

Which of the following pairs of measured numbers have the same uncertainty or error in both numbers? (mark all correct responses) Choose all that apply. a) 3.45 x 10-3 and 5.400 x 10-2 b) 4.6 x 105 and 2.9 x 106 c) 3.305 x 107 and 7.15 x 105 d) 4.8 x 10-4 and 0.34501 e) 45,700 and 4.9 x 104

Calculate the following and express the answer in the proper number of significant figures: (5.245x0.03x9.0023)/(4.076x0.029x42.3)=

A rectangle has a length of (5.1 ± 0.2) m and a width of (2.3 ± 0.1) m. Calculate: (a) the area and (b) the perimeter of the rectangle, Give the uncertainty in each value.

A rectangle has a length of (2.8 ± 0.2) m and a width of (1.7 ± 0.2) m. Calculate the area and the perimeter of the rectangle, and give the uncertainty in each value. (a) Calculate the area and give its uncertainty. (Enter your answers in m2.)   m2 ±  m2 (b) Calculate the perimeter of the rectangle and give its uncertainty. (Enter your answers in m.)   m ±  m

what is the correct answer?

The radius of a sphere is known to be  r = 6.27 ± 0.06 cm.  The volume of a sphere is given by  (4/3)?r3.  Find the absolute uncertainty and the percent uncertainty in the volume of the sphere. absolute uncertainty       cm3 percent uncertainty

7. A cylinder ħas á radius of 4.6 ± 0.4 cm and a height of 5.36 ± 0.3 cm. (a) Find the volume of this cylinder and its uncertainty in cubic centimeters. (Hint: The formula for the volume of a cylinder is V = TT r2 h.) (b) Find the % uncertainty for r, h and V. (c) Find the volume of this cylinder in cubic meters. 2 3 4 r with the appropriate ing water, heated by heat. Beakers 1 and 2 of water. The height of of the flame under ine the change in