Physics Middle School

True or False

The jet stream moves northward in the winter and southward in the summer.
True
False

An air mass is a narrow band of strong winds that blow in the upper troposphere.
True
False

Answers

Answer 1
The is true because I said so
Answer 2
True

The jet stream shifts north and south seasonally

Related Questions

What tools are needed for a simple experiment at home to show the relationship between string length and frequency of sound waves

Answers

Answer: Guitar strings

Do atoms and molecules have great mass and weight at the nanoscale or do they have no mass or weight.

Answers

Explanation:

Photons are one of the very few parti kes that don't have mass. Other subatomic particles and atoms are usually always massive

Answer:

Nanoscale objects are subject to different kinds of forces than larger objects

Explanation:

I'm sorry this is all I can give you...

Which of these would have the highest temperature?

A. ice
B. water
C. water vapor

Answers

Answer:

Water vapor

Explanation:

because water vapor is gas and gas particles move faster than solid particles (which stick together) and water particles ( with a somewhat normal movement) and the faster the particle, the hotter the substance is. With that being said C is the correct answer.

C.
Water vapour is in the gaseous states has the highest amount of Kinetic energy. Therefore, it has the highest temperature.

How much time is required for sedimentary rocks to form?

A year
A couple years
A hundred years
A thousand years

Answers

The least amount of time required is D, or A thousand years.

Explanation: Rocks generally are non-renewable. With this being said, it takes at least a thousand years for a sedimentary rock to finish its compaction and cementation to form an actual rock.

Answer:

a couple of years

Explanation:

due to research the answer is millions of years just so you know

What forces make it hard for safety devices in cars to always work. What happens in real life that isn’t always tested for? Explain

Answers

Answer: During a collision there is a change in momentum The force of the collision is equal to the rate of change of momentum

Explanation: going 80 mph down a road and get hit head on by another car going 80 mph you will reach impact at about 160 mph.

If the body temperature of a person is recorded as 37°C, what is the person’s body temperature in K? Round your answer to the nearest whole number.

A. 236
B. 3
C. 99
D. 310

Answers

Answer:

D

Explanation:

0 degrees Celsius is equal to 273.15 degrees Kelvin. The temperature T in Kelvin (K) is equal to the temperature T in degrees Celsius (°C) plus 273.15. in short : T(K) = T(°C) + 273.15

Answer: D

Explanation: 37 celsius is equal to 310.15 kelvin and if you round it to the nearest whole number you get 310.

You serve a volleyball with a mass of 2100 g. The ball leaves your hand with a velocity of 30 m/s. The ball has how much energy? Calculate it.

Answers

Answer:

945 J

Explanation

You have just given the ball kinetic energy, which is given by the following equation:

Ek=0.5xm×v2

So the energy the ball has the moment after you hit it is:

Ek=0.5×2.1×(30)2<— square

Ek=945J

Your science teacher has provided the following materials to investigate the factors that affect the strength of electric and magnetic forces.

• large iron nail – 5 mm diameter

• 100 cm of thinly wrapped copper wire

• D battery

• electrical tape

• wire strip

• thumb tacks -assorted sizes

• paperclips – assorted sizes

Design an investigation you could carry out to determine the factors that affect the strength of electrical and magnetic forces.

Answers

The strength of the electric field can be estimated as force per electric charge, whereas the strength of a magnetic field depends on the force of electrons and velocity.

Whta is a magnetic field?

A magnetic field can be defined as magnetic work exerted on electric charges that are in motion (movement).

Conversely, an electric field is an area where an electric current is applied and electron force can be estimated per Volts per Meter.

In conclusion, the strength of the electric field can be estimated as force per electric charge, whereas the strength of a magnetic field depends on the force of electrons and velocity.

Learn more about magnetic fields here:

https://brainly.com/question/14411049

#SPJ1

In the circuit diagram, what does the symbol made of two long lines and two short lines with a positive and a negative sign at each end represent?


A. a source of electrical energy

B. an electrical conductor

C. a closed switch

D. an electrical resistor

Answers

It’s A. Represents a battery and a battery is a source of energy
A. The symbol represents a battery.

Select the temperature scale that matches each boiling point for water.

Water boils at 373 either celsius Fahrenheit Kelvin
.

Water boils at 100 celsius Fahrenheit Kelvin
.

Water boils at 212 Cellsius Fahrenheit Kelvin
.

Answers

Answer:

water boils at 100 Celsius

water boils at 373 Kelvin

water boils at 212 Fahrenheit

Explanation:

Hope this helps!

Answer:

water boils at 100 Celsius

water boils at 373 Kelvin

water boils at 212 Fahrenheit

Explanation:

This is it

A road sign says "Tucson, Arizona - 120 miles." How many kilometers is this?

slightly less than 60
slightly more than 60
slightly less than 200
slightly more than 200

Answers

Slightly less than 200 (193)
Slightly less than 200.

The distance in kilometers is equal to the distance in miles multiplied by 1.609344.

uh... can you help me with this all? or you can only the one you know.​

Answers

#1

Wate vapour came in contact of ice so they lost their heat so condensed around

Option C

#2

Same C

Metals have very high boiling point as you can observe copper and Iron has very huge boiling point (2K+)

#3

Option C again

As we can see the graph the line of sodium chloride boundary is almost a straight line and increasing with respect to temperature

#4

According to law of conservation of matter ,matter can neither be created nor be destroyed rather they get rearranged

Option A

#5

Option B

Sugar has C,H and O whereas Butane have only C and H

c,c,c,a,b are the answers

What characteristics distinguish the inner planets in the solar system from the outer planets?

Answers

The four inner plants have shorter orbits slower spin ,no rings ,and they are made up of rock and metalThe outer plants are made up of hydrogen and helium, so they are called gas giants

Explanation:

hope it is the right answer

shorter orbits, slower spin, no rings, and they are made of rock and metal.

What is the map scale distance represented by the following actual distance if the scale is 1 inch = 1,000 feet?

1,500 feet = ? inches.

Answers

Answer:

1.5 inches

Explanation:

Multiply both sides by 1.5.

Multiply both sides and your answer is 1.5
1,500=1.5 inches

What is a source of the pressure used to create metamorphic rocks?

The water in the ocean
The air in the atmosphere
The layers of sediment in the ocean
The magma from deep in the ground

Answers

The answer is D, or The magma from deep in the ground.

Explanation:

A wouldn’t make sense because the water in the ocean is only hot if it is the deep end of the ocean. B is incorrect because metamorphic rocks are intrusive, as far as how they form. C is incorrect because the only kind of rock classification with layers is a sedimentary rock. D is correct because as the rock sinks into the mantle, magma heats it up intensely and pressures it.
The magma from deep in the ground. Im pretty sure sorry if I’m wrong.
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