A projectile is fired from flat, level ground with an unknown initial velocity. The projectile reaches a maximum height of 20 meters and lands a horizontal distance of 45 meters from where it was launched. Find the time of flight for the projectile.
Find the x component of the initial velocity.
Find the initial speed of a projectile.
Find the angle at which the projectile was launched.

Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.

Ways that industry and agriculture use physical properties to separate substances

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.