PHYSICS HIGH SCHOOL

An extended period when temperatures are well below average is known as a/an A. drought.
B. ice age.
C. cold wave.
D. draft.

Answers

Answer 1
Answer: It would be a cold wave. 
Ice ages occur when the temperatures are extremely cold.(long-term)  
Answer 2
Answer: Depends on the "period". If weeks, months, or years, then it's a cold wave. If centuries, then you've got yourself an ice age.

Related Questions

A brass washer has an outside diameter of 4.50 cm with a hole of diameter 1.25 cm and is 1.50 mm thick. The density of brass is 8599 kg/m3. If you put this washer on a laboratory balance, what will it "weigh" in grams?
An electrical kettle uses 18A of current to boil 500ml of water. What is the electrical resistance of the kettle in ohms?
In which of these cases do we have enough information to say that the atom is electrically neutral? A. The atom has 4 neutrons and 4 protons. B. The atom has 7 protons and 7 electrons. C. The atom has 19 electrons and 19 neutrons. D. The atom has 15 neutrons and 15 electrons.
On a sky coaster (human pendulum) that reaches 20 meters from it's equilibrium position, a man of 70 kg is able to reach a maximum speed of
Which air mass would produce warm, dry weather in the summer

If a wave has a frequency of 2 Hz. what is the period

Answers

The period is the reciprocal of the frequency ... ' 1 ' divided by it.

 P = 1/f = 1 / (2 per second)  =  1/2 second

Explain the difference between mass and weight for objects on earth and on the mooon

Answers

Explanation:

The amount of matter contained inside a body is called its mass while the weight of a body is the gravitational force with which it is attracted towards the earth.

Weight, W = mg

m is the mass and g is acceleration due to gravity  

The mass of the object on the moon remains the same but the weight of the body is reduced to one sixth. This is because the moon's gravity is less than the earth's gravity.            

Hence, this is the main difference in the weight of the object on the earth and on the moon.                                    

Mass stays the same no matter what, weight however is affected by gravity and will be different on the moon than on earth.

"Light travels at the rate of 300,000 kilometers per second in a vacuum." Which of these statements is correct about this law? a. It is a fact in nature which cannot be tested.


b. It is a theory which is not supported by data.


c. It is an observation which cannot be explained.


d. It is a description which does not work under similar conditions.

Answers

Answer:

D. It is a description which does not work under similar conditions.

Explanation:

I not very sure, but I don't think the other are correct...

Answer:

D

Explanation:

This is one of the answers that remains on this question while the others get switched around if that makes sense

What is the minimum current rating of the motor disconnecting means for a 40-horsepower, 208-volt, 3-phase squirrel-cage motor?

Answers

Answer:

The minimum current rating of the motor disconnecting means is 165 Amperes.

Explanation:

First convert the given power into units of watt. Since,

1 horsepower = 746 watts

Therefore,

40 horsepower = 40 x 746 watts

40 horsepower = 29840 watts

Since, we know that:

Power = Full Load Current (FLC) x Voltage

FLC = Power/Voltage

FLC = 29840 watts/208 volts

FLC = 143.46 Amperes

Now, the current for disconnecting means is at least 115% of the FLC, for the motors rated at 600 Volts or less.

Current for Disconnecting Means = (1.15)(143.46 A)

Current for Disconnecting Means = 165 Amperes

The earth-moon relationship is unique in many ways. It is the largest moon in the solar system relative to its host planet. The relative size between the earth and moon are so close, some refer to it as a ________ planet system. binary host lunar

Answers

The earth-moon relationship is unique in many ways. It is the largest moon in the solar system relative to its host planet. The relative size between theearth and moon are so close, some refer to it as a binary planet system. As it is simply a a relationship between a planet and its moon, the system is called a binary system.

The relative size of earth and moon are a little bit of close  in astronomical world.One can find unique relationship between two planetary systems i.e the earth and moon.

In astrophysics the term binary planet system refers to two planets.Here both the planets are of planetary masses.Two planetary bodies will be considered as the binary system if their sizes are proportional to each other and comparable.

Moon is the one satellite in the entire solar system which is larger than other satellites.The weight of the earth is 81 times more than the weight of earth and it is just 384000 km away from earth .Ideally it can not be considered as binary planet system.But it is considered as a binary planet system as their relative size are so close.

Hence the answer of this question is binary planet system.

Magnitude and Direction of Electric Fields??How would you do the following? A small object A, electrically charged, creates an electric field. At a point P located 0.250m directly north of A, the field has a value of 40.0N/C directed to the south. What is the charge of object A? (a)1.11×10^-9 C (b)-1.11x10^-9 C (c)2.78x10^-10 C (d)-2.78x10^-10 C (e)5.75x10^12 C (f)-5.75x10^12 C

Answers

The right answer for the question that is being asked and shown above is that: "(d)-2.78x10^-10 C."  A small object A, electrically charged, creates an electric field. At a point P located 0.250m directly north of A, the field has a value of 40.0N/C directed to the south.
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