1-The Large Hadron Collider in Europe smashes together near-light speed protons to discover new fundamental particles of nature. As part of the detection process, the “debris” from the collision is made to pass through a magnetic field. What is the purpose of this magnetic field?

2-If you are outside on a dark night you might see an aurora (i.e. northern or southern lights). What produces this display and why is it most common at middle to high latitudes?

Assignment Topic:

The big advantage to owning a home is that eventually (hopefully around retirement), you will no longer have a monthly payment for housing (although you will always have taxes and upkeep.) That said, home ownership is not always the good move.

Do you own, or hope to own in the near future? If not, what are your reasons for preferring to rent/lease? (20 pts.)

Submission Format

1. The length of your response is conditional on the question. Answer fully, but concisely.

Imagine you have two converging lenses. Lens A has a focal length of 12.5 cm. Lens B has a focal length of 50.0 cm. The diameter of each lens is 6.50 cm. Assume a near point of 25.0 cm.

a)     How could you make a microscope with 4x magnification using these lenses?

b)     How could you make a telescope with 4x magnification using these lenses?

c)     Which of these is more practical? Why?

The intensity of sunlight under the clear sky is 1030 W/m2 . How much electromagnetic energy is contained per cubic meter near the Earth’s surface? The speed of light is 2.99792 × 108 m/s. Answer in units of J/m3 .

What is the maximum radiation pressure that can be exerted by sunlight in space of intensity 3693 W/m2 on a flat black surface? The speed of light is 3 × 108 m/s. Answer in units of Pa.

Which of the following statements regarding prospecting theory is true? Explain why each statement is correct or incorrect.

a. Certainty is given low weight relative to near-certainty.
b. Prospect theory weights are exactly the same as the probabilities used in Expected Utility Theory.
c. The weighting function for losses can differ from the weighting function for gains.
d. A gains adds more to utility than an equal-sized loss subtracts from it.

Question Physics: Electrostatic Force and Gravitational Force

A small piece of paper weighs 10ˆ-2 gm. The weight of earth is 10ˆ24 kg. The glass rod with a net charge of 10-6C is brought near the paper which gets stuck to the glass rod and one can lift the stuck paper against the gravitational pull of the earth. Compare the force due to gravity on piece of paper and electrostatic force between paper and glass rod.

After a dismal start to 2019, the U.S. economy seems to be speeding up in the spring. Growth has appeared to speed up towards the end of the 1st quarter, and after such signs, economists have been ratcheting up their estimates for 1st quarter GDP. Positive areas include a resurgence in consumer spending, a declining U.S. trade deficit, and a solid labor market.

Does the United States economy seem to be safe from a recession in the near future?

The ground temperature a few meters below the surface is fairly constant throughout the year, and is near the average value of the air temperature. In areas in which the air temperature drops very low in the winter, the exterior unit of a heat pump designed for heating is sometimes buried underground in order to use the earth as a thermal reservoir. Why is it worthwhile to bury the heat exchanger, even if the underground unit costs more to purchase and install than one above ground?