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Physics Answer Questions

Myanmar: 6.8 magnitude quake kills Over 25 people

Friday, March 25, 2011
At least 25 people were killed and dozens of buildings destroyed by the earthquake that shook Myanmar near the border areas with Thailand. An earthquake measuring 6.8 on the Richter scale last night at around 20:55 local time.

As reported by The Straits, Friday, March 25, 2011, an earthquake is felt up to a radius of 800 kilometers is located at coordinates 20:56 North latitude, 99.83 East Longitude.

Officers memperingkatkan Myanmar authorities that it is still possible toll to rise. Especially in the city Tarlay, the area closest to the epicenter. At this location has been confirmed that 11 men and 13 women were killed by the quake.

"The quake also destroyed five buildings and 35 monasteries in the middle of town. Most of the victims were killed by falling rubble," said the officer. According to him, there are some areas that are still difficult to penetrate earthquake evacuation team.

The quake centered around 585 kilometers northeast of Yangon, with a depth of 40 kilometers, it was also felt in Hanoi and some parts of China.

U.S. Geological Survey (USGS), originally called the quake measuring 7 on the Richter scale. However, the power numbers were corrected to 6.8 earthquake on the Richter scale.

Aftershocks could occur with greater strength reaching 5.4 on the Richter scale. Center for the second aftershock was located around the border of Thailand and Laos with a depth of only 10 kilometers.

Myanmar also felt a strong quake in Yunnan region, the City Menghai. A total of 350 students had been evacuated due to the earthquake. Residents in southern China city of Nanning is located at a distance of 900 kilometers from the epicenter also feel the vibration. However, no significant damage at this location.

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Feeling excessive heat in summer

Sunday, March 20, 2011
Feeling excessive heat in summer and excessive cold in winter?

Thin skin/thin blood is my guess. I suffer from this as well. I have anemia and recently moved up north from the south. I get cold easily and will also sweat easily. I attribute it to having thin skin and anemia.

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Stronger Dollar, Rupiah Weakened

Tuesday, March 15, 2011
United States dollar (U.S.) this time to move rose after the tsunami that bulldoze Japan because the Japanese central bank's move was considered inappropriate. As a result, the rupiah cs this time must be willing to weaken.

Amount, according to the exchange rate of Bank Indonesia (BI) on Tuesday (03/15/2011) thin weakened to Rp8.773 per USD compared with the previous period in Rp8.771 per USD.

Meanwhile, according yahoofinance, the rupiah weakened to Rp8.787, 5 per USD with a daily trading range from 0.5 to 8 .822,5 Rp8.742 per USD. Exchange rates are also looking eroded the U.S. dollar. The euro weakened to 1.3935 per USD, the pound weakened to 81.635 per U.S. dollar. While the current yen rose to 81.635 per U.S. dollar.

Indonesia Samauel Securities analyst Lana Soelistianingsih in his research said that the expansion of monetary policy conducted by the Bank of Japan (Japan's central bank) liquidity injections by doing worth 15 trillion yen, equivalent to USD183 billion in a single day of surgery, considered by market players less aggressive amid negative sentiment being particularly vulnerable.

Investor sentiment deteriorated because two of the four nuclear reactors in Fukushima has exploded and worried cause extensive radiation disaster. Yet at the same time constrained by the fiscal expansion of government debt ratio is already very high around 200 percent of GDP.

BoJ still going to buy long-term government bonds worth 500 billion yen worth of short-term and one trillion yen. Total injection BoJ is expected to reach a total of 35 trillion or USD428 billion.

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Balance Moon Stone

Thursday, December 30, 2010

A space traveler about to leave for the moon has a spring balance and a 1.0 kg mass A, which when hung on the balance on the Earth gives the reading of 9.8 newtons. Arriving at the moon at a place where the acceleration of gravity is not known exactly but has a value of about 1/6 the acceleration of gravity at the Earth's surface, he picks up a stone B which gives a reading of 9.8 newtons when weighed on the spring balance. He then hangs A and B over a pulley as shown in the figure and observes that B falls with an acceleration of 1.2 m sā€“2 . What is the mass of stone B?


mB ā‰ˆ 5.8 kg

Source: http://www.feynmanlectures.info

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Does that cause a flood?

Saturday, July 31, 2010
Does that cause a flood?

Basically there was flooding caused by overflowing of water flow that occurs on a channel or river. It could happen anywhere, where the high and low places.

At the time the water fell to the earth's surface in the form of rain (precipitation), the water will flow into a lower place through a channel or river in the form of surface flow (run off) portion will be entered / seep into the soil (infiltration) and some more will be evaporates into the air (evapotranspiration).

In fact flooding is a natural event in the flood plain area, why can naturally? Because the flood plain formed by the flood event. Floodplain is an area formed by the flood sedimentas. When floods occur, not only water but also soil brought from the river flow downstream. Flood plains are usually formed in areas pertemuan2 river. As a result of this sedimentation event, flood plains is a fertile area for agriculture, has a shallow ground water that is well suited for residential and urban areas.

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More than one constant in a science experiment

Sunday, June 20, 2010
Are there more than one constant in a science experiment?

I'm not quite sure what you mean by 'constants'. Let me try to explain experiments, and hopefully that'll help.

In a well-designed experiment there is a dependent variable and an independent variable, and there may be many controlled variables.

Let me illustrate with an example. My experiment is 'more coffee makes teachers teach better'.

The independent variable is the thing that you plan to change. For my experiment it's the amount of coffee given to the teachers.

The dependent variable is the thing that you will measure. In my experiment it is how well the teachers teach.

The controlled variables are all the other differences and things that can change. You'd need to use the same teachers with different amounts of coffee, not different teachers, because otherwise you wouldn't know whether it was the coffee that made them better or they were already better. There are a lot of other things you'd need to keep the same (control), like how interesting or difficult the material they're teaching about.

But yes, at least two variables in any experiment, dependent and independent, and most likely a number of controlled variables.

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Why physics is interested?

Saturday, June 12, 2010
Why physics is interested?

Coz there many miracle at physics.... :)