Simply, apply the formula
![E = \frac{1}{2}mv^{2}](https://tex.z-dn.net/?f=%20E%20%3D%20%5Cfrac%7B1%7D%7B2%7Dmv%5E%7B2%7D%20)
and insert the values of m = mass, v = velocity and E = Energy.
The result will be
![72J = \frac{1}{2}m(12m/s)^{2}](https://tex.z-dn.net/?f=72J%20%3D%20%20%5Cfrac%7B1%7D%7B2%7Dm%2812m%2Fs%29%5E%7B2%7D%20%20)
, m = 1 kg
Answer:
Potential energy is stored energy that is stationary. Kinetic energy is energy in motion
Explanation:
Examples:
A car moving forward down a hill is kinetic energy
A car about to go down a hill after reaching the top is potential energy.
Hope I helped :)
Answer:
See below
Explanation:
29 mile/hr * 5280 f/mile / 3600 s/hr = 42.53 ft/ sec
42.53 ft / sec / 12 feet = 3.54 cycles / sec = 3.54 Hz
for frequency I suppose....where is the referred to figure?
Young people
Explanation:
cuz old people can't do sports
Answer:
12.56 A.
Explanation:
The magnetic field of a conductor carrying current is give as
H = I/2πr ............................... Equation 1
Where H = Magnetic Field, I = current, r = distance, and π = pie
Making I the subject of the equation,
I = 2πrH............... Equation 2
Given: H = 1 T, r = 2 m.
Constant: π = 3.14
Substitute into equation 2
I = 2×3.14×2×1
I = 12.56 A.
Hence, the magnetic field = 12.56 A.