A = 1*100 = 100 Ns
b = 10 * 12 = 120 Ns
c = 0.5*1000 = 500 Ns
d = 100 * 2 = 200 Ns
a has least momentum
Frequency - number of waves (vibrations, revolutions, of cycles) that pass a given point per unit time.
the correct answer should be A
hope this helps :)
The radius of its orbit, measured from Earth's center, will be 1.44 × 10⁷ mm.
<h3>What is Newton's law of gravitation?</h3>
Newton's law of gravity states that each particle having mass in the universe attracts each other particle with a force known as the gravitational force.
Given data in problem is;
The mass of Earth is, 
Gravitational constant, G =6.674 × 10⁻¹¹ N m₂/kg²
The gravitational force is proportional to the product of the masses of the two bodies and inversely proportional to the square of their distance.
The centripetal force due to rotation of the satellite;
The centripetal and the gravitational force are equal;
![\rm F_g = F_c \\\\ \frac{Gm_sm_e}{r^2} = \frac{m_s v^2}{r} \\\\ r = G \frac{m_E }{v^2 } \\\\ r = G \frac{m_E }{(r \omega )^2 } \\\\ r = \sqrt[3]{\frac{Gm_E}{\omega^2}} \\\\ r = \sqrt[3]{\frac{6.67 \times 10^{-11}(5.98 \times 10^{24})}{(3.63 \times 10^{-4})^2}} \\\\ r = 1.44 \times 10^7 \ mm](https://tex.z-dn.net/?f=%5Crm%20F_g%20%3D%20F_c%20%20%5C%5C%5C%5C%20%20%5Cfrac%7BGm_sm_e%7D%7Br%5E2%7D%20%3D%20%20%5Cfrac%7Bm_s%20v%5E2%7D%7Br%7D%20%5C%5C%5C%5C%20r%20%3D%20G%20%5Cfrac%7Bm_E%20%7D%7Bv%5E2%20%7D%20%5C%5C%5C%5C%20r%20%3D%20G%20%5Cfrac%7Bm_E%20%7D%7B%28r%20%5Comega%20%29%5E2%20%7D%20%5C%5C%5C%5C%20r%20%3D%20%5Csqrt%5B3%5D%7B%5Cfrac%7BGm_E%7D%7B%5Comega%5E2%7D%7D%20%5C%5C%5C%5C%20r%20%3D%20%5Csqrt%5B3%5D%7B%5Cfrac%7B6.67%20%5Ctimes%2010%5E%7B-11%7D%285.98%20%5Ctimes%2010%5E%7B24%7D%29%7D%7B%283.63%20%5Ctimes%2010%5E%7B-4%7D%29%5E2%7D%7D%20%5C%5C%5C%5C%20r%20%3D%201.44%20%5Ctimes%2010%5E7%20%20%20%5C%20mm)
Hence, the radius of its orbit measured from Earth's center will be 1.44 × 10⁷ mm.
To learn more about Newton's law of gravitation, refer to the link.
brainly.com/question/9699135.
#SPJ1
Here we have to add the two measurements given in the question
The measurement values are given as 1.0090 cm and 0.02 cm.we have to add them on the basis of significant figure rules.
As per the addition rule in terms of significant figures
1-First we have to select the number of significant digits after the decimal point of each quantity.
2-Now we have to remember that during the addition ,the resultant of two quantities will follow the quantity having least number of significant figures after the decimal point.
3-Here we are considering the minimum number of significant figures after the decimal points not the minimum number of significant figures in case of multiplication and division
Now we have to add these two quantities as per the above rule-
1.0090 cm +0.02 cm
=1.0290 cm
Here the result will follow 0.02 which has minimum number of significant figures after the decimal points.
Hence we have to round off the number from 9 of 1.0290
As 9 is greater than 5 ,so he actual result will be 1.03 cm
W = mg, because you have the weight of the piano and if you just divide it by g that will give you the mass you need. The piano isn't accelerating right now in a way that you'd need to use F = ma.
