Answer:
The magnification produced by a plane mirror is +1
means then the size of the image is equal to the size of the object. If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object.
Answer:
D. Scientists repeat their experiments just a few times to show that they can get the same results more than once and to catch any mistakes in the procedure.
Hope this helped! :)
Answer:
8.05 m/s^2
Explanation:
Instantaneous angular speed(w) = 1.25 rad/s
Angular acceleration (α) = 0.745 rad/s^2
Distance from the centre to where the child is (r) = 4.65m
Tangential acceleration = αr
= 0.745 * 4.65
= 3.464 m/s^2
Centripetal acceleration = w^2r
= (1.25)^2(4.65)
= 7.266 m/s^2
Total acceleration = √3.464^2 + 7.266^2
= √64.794052
= 8.05m/s^2