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Physics

Leo Wong

Which of the following is not a greenhouse gas?

water

carbon dioxide

nitrous oxide

propane

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Physics

Nigel Pierce

True or false. When populations do not exceed their environment carrying capacity biology communities are stable?

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Physics

Hector Campos

When waves are closely spaced together, how would you describe the pitch that you hear?

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Physics

Jacob Parsons

The coefficient of performance of a refrigerator is 6.0. The refrigerator's compressor uses 115 W of electric power and is 95% efficient at converting electric power into work. What is the rate at which heat energy is removed from inside the refrigerator?

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Physics

Salvador Munoz

How high does the atmosphere extend from the earth

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Physics

Guest

What is the equivalent resistance of a circuit that contains four 75.0 resistors connected in series to a 100.0 V battery?

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Physics

Sarahi Watson

Amplitude means that a note has a high pitch.

true or false

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Physics

Emilee Schmidt

3. As part of an engineering team at Space-X designing microcircuitry to control rocket launch angle, you must assess the power budget needed to operate 4 fin-control systems. Each system requires 0.16 micro Amperes for circuits with 3.4 milli-Ohms of resistance. How much total voltage is needed to supply these circuits?

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Physics

Cloe Hines

What is 74000000 in scientific notation

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Physics

Jalen Whitehead

1. Assume it takes 7.00 min to fill a 30.0-gal gasoline tank. a. calculate the rate at which the tank is filled in gallons per second? b. calculate the rate at which the tank is filled in cubic meters per second? C. determine the time interval, in hours, required to fill a 1.00-m3 volume at the same rate. (1 U. S. gal=231in. 3)

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Physics

Leila Goodman

What is 18 degrees celsius in fahrenheit?

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Physics

Emiliano Haas

The force exerted by the wind on the sails of a sailboat is fsail = 410 n north. the water exerts a force of fkeel = 200 n east. if the boat (including its crew) has a mass of 300 kg, what are the magnitude and direction of its acceleration?

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Physics

Yasmine Boyle

How much energy would be released if we could completely convert the mass of a 4.50 kilogram rock into energy? Joules One "megaton" is the amount of energy released by the detonation of 1 million tons of dynamite. One megaton is equal to 4.0 x 1015 Joules. How many megatons of energy would be released by the conversion of this rock into energy?

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Physics

Camilla Medina

suppose a rock on Earth is dropped in a vacuum and has initial speed of 0 m/s. what is the rock's speed after 2 seconds, in m/s, if it encounters no air resistance

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Physics

Yahir Conner

The antiseptics used for cuts and wounds in human flesh have low surface tension. Why?

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