Answer:
284.4233 N/m
Explanation:
k = Spring constant
x = Compression of spring = 14.5 cm
U = Potential energy = 2.99 J
The potential energy of a spring is given by
![U=\dfrac{1}{2}kx^2](https://tex.z-dn.net/?f=U%3D%5Cdfrac%7B1%7D%7B2%7Dkx%5E2)
Rearranging to get the value of k
![\\\Rightarrow k=\dfrac{2U}{x^2}\\\Rightarrow k=\dfrac{2\times 2.99}{0.145^2}\\\Rightarrow k=284.4233\ N/m](https://tex.z-dn.net/?f=%5C%5C%5CRightarrow%20k%3D%5Cdfrac%7B2U%7D%7Bx%5E2%7D%5C%5C%5CRightarrow%20k%3D%5Cdfrac%7B2%5Ctimes%202.99%7D%7B0.145%5E2%7D%5C%5C%5CRightarrow%20k%3D284.4233%5C%20N%2Fm)
The spring constant is 284.4233 N/m
To find out scientific notation, you want to make sure that number is less than 10. So do 5.000000, you don't rally need the zeros but I just want to make my point. So use 10^x meaning ten the whatever power adds zeros like 5.000000x10^6 meaning it is increasing it by six zeros moving it out of the decimals and letting become 5,000,000.
Air pressure is the weight of air on an area. The weight of air
is due to the gravitational forces between the Earth and the
molecules of its atmosphere.
Answer:
we know that current = charge/time
Explanation:
therefore,
A = 8000/120
A => 66.666.... amperes
Answer:
Pressure (P) is the amount of force applied perpendicular to the surface of an object per unit area. The SI unit of pressure is the pascal (Pa), which is equivalent to N/
(newtons per meter squared).