Aball is thrown horizontally from the top of a 60.0m and lands 100.0m from the base of the building ignore air resistance.(a) how long is the ball in the air? (b) what must have been the initial horizontal component of the velocity? (c) what is the vertical component of the velocity just before the ball hits the ground? (d) what is the velocity (including both the horizontal and velocity components) of the ball just before it hits the ground.

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.