A.) 120 - 2.5t = 1.5t
Adding 2.5t to both sides,
120 - 2.5t + 2.5t = 1.5t + 2.5t
120 = 4t
Dividing both sides by 4,
t = 120 ÷ 4
t = 30
B.) The solution represents the fact that at 30 seconds, James and Brianne are at the same height after 30 seconds of riding the elevator and running up the stairs respectively.
C.) Assuming it takes 1 second to complete 1 feet, and after 30 seconds, they have completed 30 feet, the height above the ground floor when they are at the same height at the same time will be 120 - 30 = 90feet.
Rising gas prices will result to Americans opting to find other means of transportation that costs less. Instead of driving, they may decide to ride public transport, walk, or ride a bike. Others who can afford to will opt to buy cars that is more fuel efficient. This means that they will still be driving but the car will burn lesser gas compare to before.
High gas prices will not only rely on how much it costs to produce it but also on how much the consumers are willing to pay for the fuel. If consumers demand less fuel, in the long run, gas prices will go down.
Answer:
- 484 KJ/mol
Explanation:
The reaction equation is;
CH4(g) + F2 (g) ------> CH3F(g) + HF(g)
The enthalpy of the reaction can be calculated from bond energies using the formula;
ΔHreaction = Bond energy of reactants - bond energy of products
or
ΔHreaction = Bonds broken - bonds formed
[4(413) + 1(155) - 3(413) + 1(485) + 1(567)]
[(1652 + 155) - (1239 + 485 + 567)]
[1807 - 2291]
= - 484 KJ/mol
Answer:
In the human visual system, the eye receives physical stimuli in the form of light and sends those stimuli as electrical signals to the brain, which interprets the signals as images. This process is also greatly influenced by perception and sensation. Perception is the sensory experience of the world which involves recognizing and environmental stimuli and action sin response to these stimuli. Through this process, we gain information about the properties and elements of the environment that are critical to our survival. Sensation is any concrete, conscious experience resulting from stimulation of a specific sense organ, sensory nerve, or sensory area in the brain. These two processes work closely with our vision and have many individual terms that go along with them. Rods and cones play an important role in perception. Rods perceive color, and cones perceive shadows in images. Lens also work into perception because they help refract light to be focused on the retina. The visual association cortex is a part of the brain in the cerebral cortex which processes visual information. Monocular cues are all the ways that a single eye helps you see and process what you're looking at. Monocular cues play a huge role in how you perceive the world around you. Gestalt theorists have been incredibly influential in the areas of sensation and perception. Gestalt principles such as figure-ground relationship, grouping by proximity or similarity, the law of good continuation, and closure are all used to help explain how we organize sensory information. This is how sensation and perception work within the process of vision.
Explanation:
Please don't plagiarize and paraphrase before submitting it. Sorry if this didn't help. :(
