A ball dropped on a large inclined plane, bounces repeatedly. Every bounce is perfectly elastic i.e. there is no loss of speed and lines of motion make equal angles with the incline plane before and after the bounce. Find ratio of distance R12 between the first and the second bounce to distance R23 between the second and the third bounce.
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how is the ratio 1:2 ?
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- 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 2.74Which 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 104Calculate 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.If the number of significant figures is 6, what is the value of the pre-specified Error(?s) Select one: O a 0.000005% O b. 0.0005% O c. 0.005% ০ d 0.00005%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
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