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1) The scientific method is used by scientists to understand the natural laws that the universe obeys. Scientists are not necessarily the only people who might use the scientific method. What professions, other than scientists, might use the scientific method? Explain your reasoning and use your understanding of what the scientific method is to support your answer.
2) In exploring Newton's laws, it is important to keep in mind all the forces that are at work in a given system and what their net effect is on a body. Suppose you simultaneously drop a hammer and a feather from the same height on the surface of the earth. Which will reach the ground first? Suppose you then do the same experiment on the surface of the moon. Does anything change? If so, what? Explain all your answers using what you have learned about Newton's laws of motion.
3) Imagine that you want to shoot an apple hanging from a branch with an arrow. You aim the arrow at the apple and at the exact time you shoot the arrow, the apple falls from the branch. Will the arrow hit the apple? It should still hit the apple if the air resistance (wind) is negligible that day. Why will the projectile always hit the falling object it is aimed at if it is fired at the same time the object starts to fall? Think about this problem in terms of projectile motion.
It should be an explanatory answer. Each answer should be/have a minimum of 150 words.
A roof-top solar water heater collects 50% of the 200 W/m^2 provided by the sun, using absorbers with a total area of 30m^2. If water enters the system at 15(C), how many hours will be required to warm 150kg of water to 60(C) using this heater? (Y..
52 cm3 of gasoline are mixed with 40 cm3 of water. What is the average density of the mixture
A particle with mass 1.81×10?3kg and a charge of 1.22×10?8C has, at a given instant, a velocity v? =(3.00×104m/s)j^, Find the acceleration vector for the charge
Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 450.0 N of tension. String B has a diameter of 1.2 mm and is under a tension of 800.0 N. Find the ratio of the wave speeds, va/vb, in these two strings.
A sticky hockey puck slides along a frictionless horizontal ice surface at 75m/s in the + x-direction. what is the angle of their final velocity vector below the +x direction
What is the magnitude of the electric field at this point?
Assuming the motor is supplied through an equivalent 208 V source with an impedance of 0.18+j0.15W, determine the voltage at the motor terminals during normal operation (slip of 3%).
A performer, seated on a trapeze, is swinging back and forth with a period of 9.95 s. what will be the new period of the system
Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is ?A = 630nm. The other wavelength is ?B and is unknown. What is the unknown wavelength
write a 1000- to 1200-word paper comparing the personality theories of freud jung rogers and maslow. outline how each
A converging lens has 31.3 cm focal length, and is placed 20.9 cm behind a diverging lens. Parallel light strikes the diverging lens, What is the focal length of the diverging lens in cm
You drive on Interstate 10 from San Antonio to Houston, half the time at 63 km/h and the other half at 86 km/h. What is your average speed for the entire trip
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