No, they have different definitions
Answer:
a. ω = 14.1 radians per day
b. ω = 2.24 rotations per day
Explanation:
a.
The relationship between linear and angular velocity is given as:
v = rω
where,
v = linear speed of point = 527787 miles/day
r = radius of Saturn = diameter/2 = 74900 miles/2 = 37450 miles
ω = angular velocity of point = ?
Therefore,
527787 miles/day = (37450 miles)ω
ω = (527787 miles/day)/(37450 miles)
<u>ω = 14.1 radians per day</u>
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b.
The number of rotations per day can be found by converting the units of angular acceleration:
ω = (14.1 radians per day)(1 rotation/2π radians)
<u>ω = 2.24 rotations per day</u>
Answer:
A
Explanation:
The general equation which represents an exothermic reaction is :
<u>reactants - energy → products</u>
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This is because on undergoing an exothermic reaction, heat energy is released, which means that the initial energy of the reactants is lost (subtracted).
If the type of friction is sliding friction, it may be increased by increasing the roughness of the surface and may be decreased by smoothing the surface or applying a lubricant.