Aspherical balloon with a radius of 10.0 m is filled with helium. the weight of the balloon and the gondola is 1100 n. (the volume of a sphere is given by v = (4/3)(pi a.) draw a free body diagram for the balloon clearly labeling all forces. write down the equation which is obtained from newton’s second law. b.) what is the buoyant force on the balloon? c.) what is the acceleration of the balloon? d.) what is the maximum additional payload that could be carried by the balloon?

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.