QUESTION 2 A model airplane with mass, m = 0.50 kg is tethered by a wire so that it flies in a circle 0.20 m in radius. The airplane engine provides a net thrust of
0.6 N perpendicular to tethering wire. Find the angular acceleration of the airplane when it is level flight. (Take moment of inertia I = mr2
O a.
12.6 rad/ s2
Ob.0.58 rad/s2
Oc.
5.08 rad/ s
od 6 rad/s?

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d

Assume this car is driven off a cliff . how many arrows of force need to be drawn in the free body diagram? assume no air resistance -five -one -three -four

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)