At time t=0 a grinding wheel has an angular velocity of 23.0 rad/s . It has a constant angular acceleration of 26.0 rad/s² until a circuit breaker trips at time t = 1.60 s. From then on, the wheel turns through an angle of 436 rad as it coasts to a stop at constant angular deceleration.
a) Through what total angle did the wheel turn between t= 0 and the time it stopped? answer in rad
b) At what time does the wheel stop? (secs)
c) What was the wheel's angular acceleration as it slowed down?
Express your answer in radians per second per second.

Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.

The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?