Explanation:
A rigid beam with one end at the origin has a force, F = 7.1 i +-1.8 j +7.8 k N acting on it at a position r = 2.4 i +5.3 j +8.4 k m from its fixed pivot point at the origin, Determine the magnitude of the torque exerted by this force.
a.
81.38 Nm
b.
4579.39 Nm
c.
109.33 Nm
d.
None of the other answers is correct
e.
0.00 Nm
Answer: Formula for Acceleration Due to Gravity
These two laws lead to the most useful form of the formula for calculating acceleration due to gravity: g = G*M/R^2, where g is the acceleration due to gravity, G is the universal gravitational constant, M is mass, and R is distance.please mark as brainliest
Explanation:
The total amount of energy remains constant in an isolated system. It implies that energy can neither be created nor destroyed, but can be change from one form to another.
Use the conservation of angular momentum; angular momentum at the beginning = angular momentum at the end
Conservation of angular momentum:
I1 w1 = I2 w2
Where I is the moment of inertia. For a sphere, I=2/5 m R^2. Substituting into the equation above we get
w2 = I1 w1 / I2 = w1 m1 R1^2 / (m2 R2^2)
w2 = w1 4 * (R1/R2)^2
= 4*(1)*(7E5/7.5)^2
= 3.48E10 revs/(17days)
= 2.04705882 x 10^9 revs/sec
Answer:
lunar highlands
Explanation:
Seeing the moon from the earth we can see that some parts are more illuminated than others, these different regions of the moon have been assigned a name , and have different properties.
The brightest parts are called lunar highlands, because they are at a higher elevation than the darkest parts, called lunar marias.
The lunar highlands are seen from the earth a <u>whiter color than the rest of the moon</u> due to its altitude.