A. iodine is located in period 5, group 17 and is classified
as a nonmetal
Group is the column, period is the raw.
Answer:
4.36 rad/s
Explanation:
Radius of platform r = 2.97 m
rotational inertia I = 358 kg·m^2
Initial angular speed w = 1.96 rad/s
Mass of student m = 69.5 kg
Rotational inertia of student at the rim = mr^2 = 69.5 x 2.97^2 = 613.05 kg.m^2
Therefore initial rotational momentum of system = w( Ip + Is)
= 1.96 x (358 + 613.05)
= 1903.258 kg.rad.m^2/s
When she walks to a radius of 1.06 m
I = mr^2 = 69.5 x 1.06^2 = 78.09 kg·m^2
Rotational momentuem of system = w(358 + 78.09) = 436.09w
Due to conservation of momentum, we equate both momenta
436.09w = 1903.258
w = 4.36 rad/s
Answer:
250 N
433 N
Explanation:
N = Normal force by the surface of the inclined plane
W = Weight of the block = 500 N
f = static frictional force acting on the block
Parallel to incline, force equation is given as
f = W Sin30
f = (500) Sin30
f = 250 N
Perpendicular to incline force equation is given
N = W Cos30
N = (500) Cos30
N = 433 N
Answer:
liquid.
Explanation:
That is almost the definition of a liquid. So the answer is a liquid.
The surface area of the smaller pyramid is determined as 42.7 cm².
<h3>
Area of pyramids</h3>
The base area of the two similar pyramid is given as follows;
Base area of large pyramid = 16 cm²
Base area of smaller pyramid = 12.2 cm²
<h3>
Surface area of the similar pyramids</h3>
The surface area of the smaller pyramid is calculated as follows;
s₁/b₁ = s₂/b₂
s₁/12.2 = 56/16
s₁ = 42.7 cm²
Thus, the surface area of the smaller pyramid is determined as 42.7 cm².
Learn more about base area of pyramids here: brainly.com/question/16060915
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