Recent content by AHUGEMUSHROOM

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    Undergrad What are the Physics of a loop-the-loop

    What are the Physics of a "loop-the-loop" I have to design an investigation that relates to the circular motion of a body executing a vertical "loop". Obviously, the physics involved varies quite significantly depending on the method of motion and the physical boundaries employed. So, I was...
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    Undergrad Interesting Heating and Cooling topics?

    I have to present an investigation on a topic that is related to healing and cooling. In class we're studying kinetic theory, ideal gas laws, heat, temperature, specific capacity, change of state, boiling and evaporation, energy conservation and degradation, and the transfer of heat. Are...
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    Undergrad Why aren't the daughter isotopes of alpha decay charged?

    For example, when a radioactive isotope of Uranium undergoes alpha decay, a radioactive isotope of Thorium is formed. Why isn't this daughter isotope charged?
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    Relationship between Kinetic Energy and Linear Momentum.

    Like this?
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    Relationship between Kinetic Energy and Linear Momentum.

    Homework Statement Q.1 Describe a device which can have Kinetic Energy but no linear momentum. Q.2 Is it possible to invent a device with linear momentum and no kinetic energy. Homework Equations p = mv Ek = ½ mv² The Attempt at a Solution For a "device" to have no linear...
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    High School Write a Speech: "Time Waits for No One" & Cosmology

    I've got to write a speech for Public Speaking and the topic is "Time waits for no one" and I was wondering if anyone has some ideas on how I could relate this to cosmology in my speech. All suggestions will be greatly appreciated :)
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    High School If an atom was scaled up to the size of a sports oval with a diameter of 150m ?

    How big would the nucleus be? A grain of sand (0.1cm diameter) A marble (1cm diameter) It's a grain of sand right(?); since the relationship between the diameter of an atom and its nucleus is 100,000 to 1. 150/0.001= 150,000
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    How many joules of energy are supplied.

    Homework Statement How many coulombs of electricity pass through a lamp when a current of 5A flows for 3 minutes. Answer: 900C In this time 27,000 joules of electrical energy is converted into heat and light. How many joules of energy are supplied by each coulomb. Homework Equations V=W/q...
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    Why does a CD player operate at 24V not 240V

    Homework Statement A portable CD player could be designed to operate at 240V. Explain why a much lower voltage is normally used. Provide a number of reasons. Homework Equations V=IR P=VIThe Attempt at a Solution The reason a CD player does not operate at 240V is because at 240V there would a...
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    Final velocity problem involving a roller coaster changing height

    I'm sorry but we have not come across mechanical energy yet and I am sure it was not used in working out the answer.
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    Calculating Kinetic Energy of Fridge Pushed 5m

    Fixed! :)
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    Final velocity problem involving a roller coaster changing height

    A roller coaster (475kg) passes point C with a velocity of 10.0 ms-1, calculate the velocity of the roller coaster at point A. mass = 475 kg velocity at C = 10 ms-1 height at A = 30m height at B = 0m height at C = 25m height at D = 12m Ep = mgh Ek = 1/2mv^2 The trolley is moving...
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    Calculating Kinetic Energy of Fridge Pushed 5m

    Q: A young Mr. Watford applies a force of 180N to a refrigerator on. kitchen floor. Part (A):Find the net force on the refrigerator if the floor has a constant frictional force of 35N. Ans:145N Part (B): Calculate the acceleration of the refrigerator if it has a mass of 70kg. Ans: 2.57 ms-2...
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    High School If Uranium's half life is 4.5 billion years, why does it become waste

    Okay to be brutally honest I only scanned them. I have exams coming up and I am studying 24/7, I will do my best to get around to reading them. Sorry.
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    High School If Uranium's half life is 4.5 billion years, why does it become waste

    So waste Uranium isn't decayed Uranium?