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Question: Find the location of a nearby barometer. Go there and measure the pressure of the atmosphere. Make a careful drawing of the pointer and scale on the barometer showing the pressure as you read it.
If no barometer is available, you can go to almost any weather website and find the current atmospheric pressure for the nearest weather station. Now, to run yourself through all these terms and units, make a table with two rows and eight columns. In the first row label each column with the name of a unit of pressure. Using the appropriate units, put the value of the pressure that you measured into each column of the second row. Why is the number you measured different from the value of the "standard atmosphere"?
A grasshopper hops down a level road. On each hop, the grasshopper launches itself at angle 45 degree and achieves a range R = 1.4 m. What is the average horizontal speed of the grasshopper
A police van moving on a highway with a speed of 30 kmph fires a bullet of a theif's car speeding away in the same direction with a speed of 192 kmph.
Cart C has mass 123 gram cart D had mass 345 gram The carts are on a frictionless track. Calculate the total kinetic energy of the carts after collision
An electron moves at a speed of 480m/s perpendicular to the direction of the uniform magnetic field of 1 T. What is the radius of the electron's circular orbit in units of nanometers (1 m = 109 nm)
An electric motor rotating a workshop grinding wheel at a rate of114 rev/min is switched off. Suppose the wheel has a constant negative angular acceleration of magnitude1.90 rad/s2. How long does it take for the grinding wheel to stop?
A fellow astronaut passes by you in a spacecraft traveling at a high speed. The astronaut tells you that his craft is 20.0 m long and that the identical craft you are sitting in is 19.0 m long. According to your observations,
A 1.12-kg aluminum pot contains 2.25 L of water. Both pot and water are initially at 19.1 °C. How much heat must flow into the pot and the water to bring their temperature up to 95.0 °C
A beam of ultraviolet radiation, with frequency of 2.710×1015 Hz is directed on a clean metal surface. Calculate the maximum kinetic energy for an electron dislodged from the surface by the radiation
How much lift is exerted on the wings of an airplane that have atotal surface area of 102 m2 when the difference in air pressure below and above the wings is 4% of atmospheric pressure?
The polarizing angle for light in air incident on a glass plate is 57.2. What is the index of refraction of the glass
question1two speakers one directly behind other are each generating a 268-hz sound wave. what is the least separation
The acceleration due to gravity on the Moon is 1/6 that on theEarth. If you place a 2.0 meter long pendulum on theMoon. What is its frequency of oscillation
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