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Question:1. a) Describe the balance of forces that hold together the subatomic particles in the nuclei of atoms.
b) Explain the process of radioactive decay and how radioactive half-lives are used to date certain materials.
2. a) Explain Einstein's theories of special relativity and general relativity.
b) Include at least one piece of evidence in support of each theory.
3. a) Explain the science and technique of spectroscopy. Include the 3 laws of spectroscopy in your response.
b) What is the difference between an emission spectrum and an absorption spectrum?
An opaque container is 15 cm deep. It contains only a single coin. When looking into the container at a viewing angle of 50o relative to the vertical side of the container, you see nothing on the bottom. When the container is full with water, you see..
A silver coin has the mass of 17.75g. If the atomic mass of silver is 107.868u, how many silver atoms are in the coin
What is the charge per unit area on the plastic sheet.
A ball rolls down a hill. What causes constant acceleration down the hill? What determines how much acceleration there is (is the angle/incline of the hill a factor)
A block of mass m1=16.6 kilogram rests on a frictionless ramp, which makes an angle italic theta (unknown) with respect to the horizontal. find what would be the magnitude of the tension
From the top of a cliff 80 meters high, a ball of mass 0.4 kilogram is launched horizontally with a velocity of 30 meters per second at time t=0. The potential energy of the ball is zero at the bottom of the cliff. Use g=0 meters per second square..
a crude oil pipeline 500 km long with 400 mm outside diameter and 8 mm wall thickness is used to transport 600 m3 hr of
A hoop and a disk, both of 0.46- m radius and 3.0- kg mass, are released from the top of an inclined plane 3.0 m high and 9.0 m long. What is the speed of the disk
A football is kicked at ground level with a speed of at an angle of 35.0º to the horizontal. How much later does it hit the ground
The box starts from rest moves a horizontal distance of 10 m and obtain a velocity of 5 m/s. the surface has friction. Find friction force.
A 78 kg cross-country skier glides over snow as in the figure below. The coefficient of friction between skis and snow is 0.50. Suppose all the snow beneath his skis is at 0°C and that all the internal energy generated with friction is added to snow,
An electric fan is running on HIGH. After the LOW button is pressed, the angular speed of the fan decreases to 83.8 rad/s in 1.75 s. Determine the initial angular speed of the fan
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