Answer: n; 160 =< n < 3796
Explanation:
Number of miles needed to claim Gold d has the range
{d; 2280022800 > d >= 96009600}
Greg goes 600600miles in a year
dGreg = 600600mi
Lower limit for a Gold status is 96009600
Thus, we find the lower limit of number of trips
n = d/dGreg
(d here is the lower distance per year to be covered in order to attain Gold)
n(lower) = 96009600/600600
= 159.8561 ~ 160 trips
n(higher) = 2280022800/600600
= 3796.24 ~ 3796 trips
In interval notation
n; 160 =< n < 3796
Answer:
Explanation:
radius of hoop and the radius of disk is same = R
Let the mass of hoop is M and the mass of disk is M'.
As they reach the bottom of teh surface in same time so they travel equal distance thus, they have same acceleration.
The acceleration is given by
As the acceleration is same so that the moment of inertia is also same.
Moment of inertia of disk = moment of inertia of hoop
1/2 x mass of disk x R² = mass of hoop x R²
So, mass of disk = 2 x mass of hoop
Option (c) is correct.
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Answer:
dd
Explanation:
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Answer:
a wheel and axle can also serve as a force multiplier, according to Science Quest from Wiley. If a wheel is attached to an axle, and a force is used to turn the wheel, the rotational force, or torque, on the axle is much greater than the force applied to the rim of the wheel.
Explanation:
