# Physics

20.122008

### water purification and quality

spigemonkey Physics 1 9
19.122008

### A child dangles a 1.50-kilogram stuffed toy 0.500 meters from the ground. What is the potential energy of the toy? Answers are: 0.188 J 0.750 J 7.35 J 14.7 J

Stmartin891 Physics 1 6
19.122008

### A cat with a mass of 4.50 kilograms sits on a ledge 0.800 meters above the ground. If it jumps to the ground, how much kinetic energy will it have just as it reaches the ground?

cnblue Physics 1 11
19.122008

### What is a negative effect of these chemicals on society

Cocacola Physics 1 11
19.122008

### Which of the following species is a K-selected species? a. Redwood trees b. Fruit flies c. Algae d. Grasshoppers

Yolande105 Physics 1 8
19.122008

Lozz Physics 2 9
19.122008

### A fly with a mass of 0.0025 kg flies at a rate of 20.0 m/s. What is the kinetic energy of the fly? Answers are: 0.050 J 0.025 J 0.50 J 1.0 J

Stmartin891 Physics 1 13
19.122008

### which interaction of nature binds neutrons and protons into nuclei? A. strong B. weak C. electromagnetic D. gravitational

CharlynDudenbostel Physics 1 7
19.122008

### What do we call the average motion of moving atoms and molecules in the atmosphere?

hkeorra2 Physics 1 9
19.122008

### The object distance for a convex lens is 15.0 cm, and the image distance is 5.0 cm. The height of the object is 9.0 cm. What is the height of the image? Answers are: 3.0cm 8.3cm 27cm Need asap :)

Stmartin891 Physics 1 8
19.122008

### A book with a mass of 2.5 kg falls from a high shelf in a library. At a height of 2.0 meters its velocity is 2 m/s. What is the mechanical energy of the book? Answers are: 5J 44J 49J 54J

Stmartin891 Physics 1 9
19.122008

### what is the speed of a wave that has a frequency of 125 Hz and a wavelength of 1.25 meters

TheresiaNierman108 Physics 2 8
19.122008

### leptons are made of quarks and antiquarks true or false ?

CharlynDudenbostel Physics 1 9
19.122008

### Which two types of waves can transmit energy through a vacuum?

absedra Physics 1 9
19.122008

### In a lake ecosystem, the atmospheric sciences component of environmental science might deal with _______.

LoVe6037 Physics 2 104
19.122008

### Many types of scientific equipment are used to perform different functions in the science lab. Which of the following combinations of equipment would be needed to bring one liter of water to 85°C?

eglenn42 Physics 1 11
19.122008

### sound will travel fastest in air at ______ at

Kayla3 Physics 2 10
19.122008

### what graph would you use to compare the size of eight planets

8mlctoe4vph Physics 1 9
18.122008

### which of the following is not a reason fluorescent lamps are advantages over incandescent lamps?

Trapped8896 Physics 1 70
18.122008

### 40 POINTS CORRECT ANSWER Why does hot air rise and cold air sink? A ) Cold air has more kinetic energy than hot air. B ) Hot air has more potential energy than cold air. C ) Cold air is more dense than hot air. D ) Hot air is more dense than cold air.

love22 Physics 2 7
18.122008

### Once an experiment has been conducted and the results analyzed, what 4 possible responses are there when interpreting the data?

yunandi Physics 1 9
18.122008

### 40 POINTS CORRECT ANSWER What is the restoring force of a spring stretched 0.35 meters with a spring contact of 55 newtons/meter? 91 newtons 63 newtons –35 newtons –19 newtons

love22 Physics 2 9
18.122008

### Wind blows because of ...... A. The coriolis effect B. Temperature and pressure differences C. The water cycle D. Different atmospheric layers

kitkat2 Physics 1 7
18.122008

### Wind blows because of ...... A. The coriolis effect B. Temperature and pressure differences C.the water cycle D. different atmospheric layers

kitkat2 Physics 1 9
18.122008

### What are 3 physical properties of aluminum foil

Rhea25 Physics 1 7