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1.Infrared radiation is also called IR. Describe how it is different from visible light.What emits IR? Can animals use it? Explain how emission of IR sometimes "wastes"energy. Give examples showing how IR ia used in modern technology.
2.Modern medical imaging can do much more than take a simple x-ray.Define and explain four methods methods that are used for medical imaging .Explain the physic behind the techniques, describe what they measure, and say something about the application
3.Visible light is an electromagnectic wave. Name five other phenomena that are also electrimagnetic waves but have different name.How do these waves differ? Briefly describe application for each of these waves.
4. Human have been polluting the atmosphere in ways that could have lasting effect for future generation.What are the chemical that have been put into the air that could do this ? What effects could they have? Describe as much of the relevant physics as you can .
A 16.23-cm-long, 173 g rod is pivoted at one end. A 16 g ball of clay is stuck on the other end. What is the period if the rod and clay swing as a pendulum
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m. Determine maximum height reached by dart.
a metal airplane flies horizontally at 200. m/s where the Earth's magnetic fiels is vertical and is 45.0uT. If the wingspan is 25.0 meters. what emf is induced across the wings
If the average kinetic energy per molecule of a monatomic gas is 7.0x10^-21 Joule, determine the Celsius temperature of the gas
A long slender bar is made from an unknown material. The length of the bar is 0.752 m, its cross-sectional area is 1.48 × 10-4 m2, Find the Young's modulus of the unknown material
The pressure inside a gas bottle at 25.5 °C is 3630 kPa. What will be the pressure inside the bottle
A ladybug is sitting at the center of a turntable. The turntable is rotating on a frictionless bearings and it rotates without assistance from a motor. As the ladybug walks to the edge of the turntable, what happens to combined angular momentum of..
a laser positioned on a ship is used to communicate with a small two man research submarine resting on the bottom of a lake. How far is the submarine from the side of the ship
A cube made of wood has sides 15.20 cm in length with an uncertainty of 0.05 cm. What is the final volume of the cube and its uncertainty
On an air track, a 400 g glider moving to the right at 2.00 m/s collides elastically with a 500 g glider moving in the opposite direction at 3.00 m/s, Find the velocity of second glider after the collision
An inductor and a resistor are connected in series. When connected to a 60 Hz, 90 V (rms) source, Find the resistance and the inductance
An electron is confined in a box 1.0 x10^-9m in width. What is the uncertainty in its speed
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