Question 5 of 18 0.55 H E View Policies Show Attempt History Current Attempt in Progress I I : Your answer Is partially correct. '_ ____________________________________________________________________________________________ I > b ' Two forces FA and F3 are applied to an object whose mass is 19.9 kg. The largerforce is FAA When both forces point clue east, the ' > object's acceleration has a magnitude of 0.772 m/sz. However. when FA points due east and F3 points due west, the acceleration is 0.682 mrs2, due east. Find la} the magnitude of: and {h} the magnitude of F.;. {a} Number 14.5 Units {bl Number i 0.86 Units Question 12 of13 _ H E View Policies Current Attempt in Progress A neutron star has a mass of 2.0 x 1030 kg [about the mass ofour sun] and a radius of 5.0 x 103 m (about the height ofa goodsized mountain). Suppose an object falls from rest near the surface of such a star. How fast would this object be moving after it had fallen a distance of 0.013 m? {Assume that the gravitational force is constant over the distance of the fall and that the star is not rotating.) v = a mis V 0.0 Question 13 of 18 - /1 View Policies Current Attempt in Progress A block is pressed against a vertical wall by a force F , as the drawing shows. This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The magnitude of the force is different in the two cases, while the directional angle 0 is the same. Kinetic friction exists between the block and the wall, and the coefficient of kinetic friction is 0.300. The weight of the block is 48.0 N, and the directional angle for the force F is 0 = 43.0% Determine the magnitude of F when the block slides (a) up the wall and (b) down the wall. (a) P = i (b) P = HI