question seems unclear as it does not specify kinetic potential energy or gravitational potential energy. It can be useful if you take a picture of the question and upload it if a picture is there.

isetan:

Hi, another science question--


A basketball player lifts and throws a ball upwards (at an angle) and lands into the net. Is the potential energy greater when the ball leaves his hand or is it when the ball almost touches the net? Tks.

isetan:

Hi Parents,


Can help to answer this query?

\"Can photothesis can place in plants with presence of green light?\"

Kangkangteo:

some addition to the answer can be,

when the belt x -with magnetic metals attracted to it -reaches near the bin C, it loses the magnetic attraction from the magnet and falls down in the bin C.

swordtail:

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This was my child's answer to this question. Don't know why didn't get full marks for this question. Anybody can enlighten me as to what is the 'model answer' to get full marks for this question?
When the metal filings moved towards bin C, the magnetic attraction became weaker and the gravitational force pulled the metal filings into bin C.

Your answer is irrelevant as the question stated as separation of magnetic and non-magnetic metals.

Both magnetic and gravitational forces play a part for (a) and are thus relevant. --- Kangkangteo

Yes, area Q has same highest wind speed in Jan and Dec.

Answer should be 3.

45has:

Jamesbond:

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My ans is 3. Given ans is 4. Can anybody explain?

I cant see clearly but Area Q looks to have the same (highest) average wind speed in Jan and Dec.

1.The colder water will warm up (heat energy \"flows\" into it). The warmer water will cool down (heat energy \"flows\" out of it

2. The whole mixture will wind up at the SAME temperature.
So, Within glass C, water of glass B with 60 degrees will lose heat to water of glass A with 40 degrees and they set equilibrium around 50 degrees. This temperature can go down slightly as water can lose heat to surroundings while transferring to glass C.

midnight2014:

need help with this question:
room temperature is 30 degrees
temperature of water in glass A is 40 degrees
temperature of water in glass B is 60 degrees
If half of the water from glass A and B are poured into glass C, what will be the temperature of water in glass C immediately after the water has been poured in?

Your DD's answer is correct ,both Jolene and Joshua are carrier of genetic disorder.

Hougangdaddy:

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Question : Which of their children is a carrier of the genertic disorder trails?
Answer given : Jolene.
DDs answer : Jolene and Joshua. Why is Joshua not a carrier?

Appreciate your help!

Aim of the experiment is to check if number of roots affect the amount of water absorbed by a plant.

jolenekoh:

Please advise. Thank http://i62.tinypic.com/11c5z7o.jpg\">

some addition to the answer can be,

when the belt x -with magnetic metals attracted to it -reaches near the bin C, it loses the magnetic attraction from the magnet and falls down in the bin C.

swordtail:

http://i62.tinypic.com/168tlah.jpg\">

This was my child's answer to this question. Don't know why didn't get full marks for this question. Anybody can enlighten me as to what is the 'model answer' to get full marks for this question? What is missing from her answer? :?

Volume of air trapped inside the chocolate bar is independent (test) variable. It is not dependent on initial volume of water during the experiment. Thus, it is not required to keep initial volume of water same.

Kangkangteo:

S-H:

Hi, can someone help me with part (b). Thank you.


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Let me try. But I am afraid my answer may not get full marks (2).

The results are based on the change in water levels and not affected by the initial water level. Hence initial water level needs not be kept a constant.

yes,both should be counted in sea shore community as they live in group and reproduce there.

Blur Baby:

Hi, may I know if seagulls and seals are part of the seashore community?


Thank you?