Arotating platform of radius r = 2.7 cm starts from rest and accelerates with uniform angular acceleration α = 38 rad/s2. randomized variables r = 2.7 cm α = 38 rad/s2 33% part (a) write an expression that gives the centripetal acceleration on the edge of the platform as a function of time, ac(t).

r = radius

α = angular acceleration

t = time

w₀ = initial angular velocity = 0 rad/s

w(t) = angular velocity at any time "t"

Angular velocity at any time is given as

w(t) = w₀ + α t

w(t) = α t since w₀ = 0

w(t) = α t eq-1

centripetal acceleration at any time is given as

a(t) = r w²(t)

using eq-1

a(t) = r (α t)²

a(t) = r α² t²

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever