Physics, 30.04.2021 19:20 adiafloresp2dkbx
At a carnival, you are about to throw a spear at an underwater target lying flat on the bottom of the pool. The water is 1.0m deep. You are standing on a small stool that places your eyes 3.0m above the bottom of the pool. When you look at your target, your line of sight is 300 below the horizontal. At what angle below horizontal should you throw the spear in order to hit the target? Your raised arm brings the spear point to the level of your eyes as you throw it, and over this short distance you can assume that the spear travels in a straigh line rather than a parabolic trajectory.
Answers: 1
Physics, 21.06.2019 19:30
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.
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Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?
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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
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Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)
Answers: 1
At a carnival, you are about to throw a spear at an underwater target lying flat on the bottom of th...
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