<span>C. The filings will be clustered more densely where the field is weakest.</span>
Explanation:
M₂ = Fr²/GM₁
M₂ = [(132N)(.243m)²]/[(6.67*10^-11N*m²/kg)(1.175*10^4kg)]
M₂ = (7.79N*m²)/(7.84*10^-7N*m²)
M₂ = 9.94*10^6 kg
Answer:
8.4 kW
Explanation:
Using the Stefan-Boltzmann law,
P = εAσT4
Where:
P: Radiation Energy
ε: Emissivity of the Surface. Check emissivity table below of common materials.
A: Surface Area, in m^2.
σ: Stefan-Boltzmann Constant, σ=5.67 × 10-8 W/m2•K4
T: Temperature
Plugging in values,
P = 0.85 x 3.328 x 5.67 x 10^(-8) x 205
P = 8383 W or 8.4 kW
Answer:2000j
Explanation:
Law of conservation of energy energy State that in a close system energy can neither be created nor destroy but can be transformed from one form to another.
At the top of the height, the rock possessed only potential energy
PE=mass×g×height
PE =8×10×25
PE=2000j
The kinetic energy at the bottom of the building will also be 2000j since energy cannot be created or destroyed,and potential energy of 2000j have been converted to kinetic energy at the bottom of the building
Answer:
5/6 MR²
Explanation:
In the composite object, the distance from the disk's axis to the rod's axis is R/2. Using parallel axis theorem, the rod's new moment of inertia is:
I = 1/12 MR² + M (R/2)²
I = 1/12 MR² + 1/4 MR²
I = 1/3 MR²
The total moment of inertia is therefore:
I = 1/2 MR² + 1/3 MR²
I = 5/6 MR²