Answer:
6.9.
Explanation:
In case of product of two physical quantities with errors , the rule is that the product will contain error equal to the sum of percentage errors of the two physical quantities. Foe example P contains 2% error and Q contains 3% error then P X Q will contain 2 +3 = 5 % error.
(21 ± 1.14 %) x (14±1.9%)
Total percentage error in the result of product
1.14 + 1.19 = 2.33 %.
Produce value = 21 x 14 = 294
percent of error in it = 2.33%
value of error
= 2.33% of 294
= 6.8502 or 6.9.
Your answer would be C as it’s not part of the reproductive system.
The weight I 151.9 N because the weight equals the mass times the gravitational force
Answer:
Remember: in physics and music, frequency equates to pitch, and amplitude equates to loudness. Also, remember frequency is inversely proportional to wavelength- remember this!
Thus, (B) should be the correct answer, because, think about it, if a note is higher, than the wavelength should be shorter so the length should also be shorter, but in the case of B, if the cable is longer or thicker then the wavelength gets longer. Therefore, going from low to high, the string should be getting shorter, due to the fact that as wavelength gets shorter, frequency gets higher.
Answer:
2.63m
Explanation:
In order to use this expression, we must calculate the values of Velocity (V0) and Velocity(Ve). The initial velocity has only a horizontal component V(0) = V(0x), the final velocity also has a horizontal component since the ball it's at a point of trajectory, V(e) = V(ef). No forces act in the horizontal direction so the momentum of the ball in this direction is conserved, hence, V(0) = V(e)
Therefore, h(e) = h(0) = 2.63m