A solar flare is a very high energy event on the surface of the sun. Which wavelength is best to observe such an event?
- visible light
-microwaves
-xray
-infrared

Answers

Answer 1
Infrared is the answer

Related Questions

Work is the product of force and an object's
A. time
B. momentum
C. displacement
D. space

Answers

Answer:

C. displacement

Explanation:

Work is the product of force and an object's displacement. The correct answer is displacement and the correct option is option (C).

The result of a force and an object's displacement is called work. Work (W) is represented mathematically by the equation:

W = F × d

In the International System of Units (SI), the unit of work is the joule (J). When a force is applied to an object and it moves over a predetermined distance in the force's direction, work has been done.

No work is done if the item stays still or if the force and displacement are parallel to one another.

Therefore, Work is the product of force and an object's displacement and the correct option is option (C).

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the upper body primal movement patterns are

Answers

Answer:

Bend to extend. Bending with a hips back movement, back straight, feet flat and forward. ...

Squat. This is a hips down motion. ...

Lunge. This is a long, linear stride, lowering your back knee to just above the ground, with a completely upright torso. ...

Rotate. ...

Push. ...

Pull. ...

Gait.

How much current must be applied across a 60 Ω light bulb filament in order for it to consume 55 W of power? Unserious answers will be deleted, and reported. (Please show some work)

Answers

Answer: current I = 0.96 Ampere

Explanation:

Given that the

Resistance R = 60 Ω 

Power = 55 W

Power is the product of current and voltage. That is

P = IV ...... (1)

But voltage V = IR. From ohms law.

Substitutes V in equation (1) power is now

P = I^2R

Substitute the above parameters into the formula to get current I

55 = 60 × I^2

Make I^2 the subject of formula

I^2 = 55/60

I^2 = 0.92

I = sqr(0.92)

I = 0.957 A

Therefore, 0.96 A current must be applied.

identify the correct order of increasing intermolecular force of attraction for the three most common states of matter.

A) liquid - solid - gas
B) Solid - liquid - gas
C) gas - liquid - solid
D) gas - solid - liquid

Answers

I believe it’s C) gas- liquid- solid

The correct order of increasing the intermolecular force of attraction for the three most common states of matter is C) gas - liquid - solid.

What is an intermolecular force in matter?

An intermolecular force is a force of attraction or repulsion that exists between molecules or atoms within a substance.

Here,
In the gaseous state, the intermolecular forces are weak, and the molecules are far apart and move freely in all directions. In the liquid state, the intermolecular forces are stronger, and the molecules are closer together, but still able to move past each other. In the solid state, the intermolecular forces are the strongest, and the molecules are tightly packed together in a fixed arrangement, which results in a definite shape and volume.

Therefore, the correct order of increasing the intermolecular force of attraction for the three most common states of matter is gas, liquid, and solid.

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Determine What is the efficiency of a machine whose work output is 4 joules, and whose work input is 10 joules?

Answers

Answer:

The efficiency of the machine is 40 %.

Explanation:

We have,

Output work by the machine is 4 joules and the input work is 10 joules.

It is required to find the efficiency of a machine. The efficiency of a machine is given by the ratio of output work to the input work. It is given as :

[tex]\eta=\dfrac{4}{10}\times 100\\\\\eta=40\%[/tex]

So, the efficiency of the machine is 40 %.

A tennis ball and a solid steel ball of the same diameter are dropped at the same time. Which ball has the greater amount of force acting on it?

Answers

The steel one.

The steel one has more force due to the weight and mass.

An object's mass is a crucial indicator of how much stuff it contains. The gravitational pull of an object is measured by its weight. It is influenced by the object's location in addition to its mass. As a result, weight is a measurement of force.

What ball has the greater amount of force acting on it?

The heavier (denser) object will fall quicker if two identically sized but made of different materials objects are present. This is because both objects will experience the same drag and buoyancy forces, but the heavier object will experience a stronger gravitational pull.

Things fall to the earth faster as a result of gravity. Acceleration is a modification of velocity, and velocity is a measurement of the direction and speed of motion. The longer an object is in free fall, the faster gravity makes it tumble toward the ground.

Therefore, solid steel ball have high mass and greater amount of force acting on it.

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This graph provides data on the amount of water needed to grow four different crops, each used to produce ethanol, a fuel. For each crop, the data shows how many liters of water are needed to produce one liter of ethanol fuel. Which of the following would require using the most water? *



Producing 100 L of ethanol from sugar cane
Producing 200 L of ethanol from sugar beet
Producing 300 L of ethanol from potatoes
Producing 400 L of ethanol from corn

Answers

Answer:

Producing 300 L of ethanol from potatoes

Explanation:

From the diagram, one liter of ethanol production from sugar cane requires 2000 liters of water. Hence, in order to produce 100 L of ethanol from sugar cane, 2000 x 100 = 200,000 L of water.

1000 liters of water is needed to produce 1 liter of ethanol from sugar beet. Hence, 200 x 1000 = 200,000 L of water will be needed to produce 200 liters of ethanol.

1000 liters of water is also required to produce 1 liter of ethanol from potatoes, hence, 300 x 1000 = 300,000 L of water would be required to produce 300 L of ethanol from the same material

About 500 liters of water is required to produce 1 liter of ethanol from corn, hence, 400 x 500 = 200,000 L of water would be needed to produce 400 L of ethanol from corn.

In conclusion, producing 300 L of ethanol from potatoes would require using the most water among all the options.

Identify the magnetic north pole of Earth’s magnet?

Answers

Answer:

using magnets

Explanation:

If we hang a magnet with a rope to an object the north pole of the magnet will point to the Earth's north pole

Empty spaces are referred to as

Answers

Answer:

An unoccupied area or volume. The empty space at the sides of the page is called the "margin". ... Atoms are 99.999999999999% empty space.

Explanation:

Answer:

A vacuum.

Explanation:

A vacuum has an empty space and is used in Science.

What are the two ways to create plasma?

Answers

Answer:

Plasma can be artificially generated by heating a neutral gas or subjecting it to a strong electromagnetic field to the point where an ionized gaseous substance becomes increasingly electrically conductive.

Answer:

By heating a natural gas

Explanation:

Television satellites use infrared waves to transmit. true or false

Answers

Answer: false

Explanation: Because Television satellites use microwaves waves to transmit.

Answer: False

Television satellites don't use infrared waves to transmit.

Which triangle side lengths form a right triangle? Choose all that apply.

A. 5,6,7

B. 6,8,14

C. 8,15,17

D. 10,12,15

E. 15,20,25

F. 16,18,20​

Answers

C and E are right triangles

To figure this out, use the Pythagorean Theorem.

a^2+b^2=c^2

A. 5,6,7

5^2+6^2=7^2
25+36=49
61=49

Not a right triangle

B. 6,8,14

6^2+8^2=14^2
36+64=196
100=196
Not a right triangle

C. 8,15,17

8^2+15^2=17^2
64+225=289
289=289
Right triangle

D. 10,12,15

10^2+12^2=15^2
100+144=225
224=225
Not a right triangle

E. 15,20,25

15^2+20^2=25^2
225+400=625
625=625
Right triangle

What is TRUE with regard to Bronfenbrenner's social ecological model applied to the context of relationships?

Answers

Answer:The affects of proximal factors on a relationship are affected by distal factors

Explanation:

An ohmmeter is a common device for measuring resistance. Using an ohmmeter, you find that a certain material has a very high resistance. This material is most likely what?
conductor
insulator
semiconductor
superconductor

Answers

Answer:

An insulator

Explanation:

Insulators have a very high resistance because the electrons of the insulator are bounded strongly with the nucleus. Hence it requires more voltage to move an electron from the valence band to the conduction band.

a force of 20 N acted on a ball thereby imparting an impulse of 70 Ns to the ball. For how long did the force act on the ball?

Answers

50n which would be 5 seconds?

Answer:3.5 seconds

Explanation:

The functional unit of the kidney is the ________?

Answers

Answer:

nephron

Explanation:

I can't really explain this one.

Answer:

nephron

Explanation:

thats what it is

An object has an acceleration of 18.0 m/s/s. If the net force was doubled and the mass were tripled then the new acceleration would be

Answers

Answer:

12.0 m/s²

Explanation:

Newton's second law:

F = ma

Solving for acceleration:

a = F/m

If force is doubled and mass is tripled:

a' = (2F)/(3m)

a' = ⅔ (F/m)

a' = ⅔ (18.0 m/s²)

a' = 12.0 m/s²

The new value of acceleration of object is 12 m/s².

Given data:

The magnitude of acceleration of object is, [tex]a =18 \;\rm m/s^{2}[/tex].

Let F be initial net force and m be the initial mass. Then as per the problem, the new values of each are,

F' = 2F

m' = 3m

Apply the Newton's Second law, which says that the product of mass and acceleration of object given net force. Then,

F = ma

F = m(18)

F/m = 18 .................................................(1)

Now, for new value of net force,

F' = m'a'

2F = (3m) a'

2F/3m = a'

a' =2/3× (18)                                                   (From equation 1)

a' = 12 m/s²

Thus, we can conclude that the new value of acceleration of object is 12 m/s².

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Which image illustrates the bending of a wave around the edge of an
obstacle?

Answers

Answer:

Explanation:

It’s C

Due very soon! 100 points please answer for all three diagrams!
The woman supports a 100 N load with the friction free pulley system shown below. Fill in the spring scale readings that show how much force she must exert.

Answers

Answer:

1. 100N 2. 50N 3. 50N

Explanation:

The spring scale reading that shows how much force she must exert is 1. 100N 2. 50N 3. 50N.

What is the spring scale?

A simple and affordable way to determine mass is by using spring balances. The mass is suspended from the end of the spring, and the spring's deflection as a result of the mass's downward gravitational pull is measured in relation to a scale.

The word "force" has a specific meaning in science. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains."

One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.

Therefore, her required force is indicated by the spring scale readings of 1. 100N, 2. 50N, and 3. 50N.

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A few Physics questions regarding circuits and electricity.

Answers

Answer:

7.series

Explanation:

in parallel is like if one bulb stops work all the others will stop too

in series it remains constant or it wont change throughout a series circuit

In a science experiment showing the splitting of water into Oxygen and hydrogen, two inverted test tubes of water were placed over the site of the reaction. (see the pic) How can you tell which one was catching the oxygen and which one was catching the hydrogen?

The hydrogen is a positive ion and will be located close to the negative terminal of the battery.


The oxygen is a negative ion which will be located next to the negative terminal of the battery.


There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.


The hydrogen, being a smaller atom, will take up less space than the oxygen. It will push the water down less.

Answers

Answer:

There are 2 hydrogen atoms for every oxygen atom. The hydrogen will take up more space and is pushing the water lower in the test tube.

Explanation:

Electrolysis refers to the decomposition of a solution (electrolyte) owing to the passage of direct current through the solution.

Water is decomposed into its constituents; hydrogen and oxygen by electrolysis. However, a battery is connected to drive the process and other electrolytes such as dilute acids are added to improve the conductivity of water.

In the electrolysis of water, two moles of hydrogen gas is produced for each mole of oxygen gas produced. Hence the ratio of hydrogen to oxygen gas produced is 2:1 by volume. This implies that the space occupied by oxygen is half the space occupied by hydrogen. The hydrogen will thus occupy more space, pushing the water much lower than oxygen.

which of the following describes glass?
A. a material that has a low resistance and allows charges to move freely
B. a material that has a high resistance and prevents charges from moving freely
C. a material that has a low resistance and prevents charges from moving freely
D. a material that has a high resistance and allows charges to move freely

Answers

Answer:b

Explanation:

In a nuclear reaction, which of the following must be conserved?
A. the number of neutrons
B. the count of nucleons
C. charge
D. the number of electrons

Answers

Answer:

c

Explanation:

Answer:

c

Explanation:

A light beam approaches a plain mirror at an incident angle of 39
degrees. What is the angle of reflection?

Answers

Angle is 31 adding all sides

Science question!! Please help

Answers

Answer:

It lasted two hours or 120 minutes, it would be smart to say that he was riding up it during the interval 20-60min and riding down it during the interval 60-80min. This is an assumption made because of his speed, when going up a hill our speed is slower while when riding down it, you gain a lot of speed.


Which of the following provides the best summary of the process of natural
selection?

A. Population sizes increase with every generation.

B. Individuals pass on their best traits to their offspring.

C. Mutations help an individual survive and reproduce.

D. Well-adapted individuals survive and reproduce.

Answers

Answer:

B. Individuals pass on their best traits to their offspring.

Explanation:

because genes are always passed from parents to offspring.

The best summary of the process of natural selection is Individuals pass on their best traits to their offspring. Hence, the correct option is B.

What is the theory of Natural selection?

The theory of natural selection gives the mechanism of evolution. It defines the method of different survival and reproduction of individuals due to differences in phenotype.

The theory of natural selection was proposed by Charles Darwin as a way of adaptation and speciation. The variations occur in organisms by random mutations occurring in the genome of individual organisms and this change in mutations may inherit in offspring.

Organisms that are more adapted to the environment are more likely to survive and pass on the genes to future generations. This process cause changes to the generations and diverged over time.

The organisms produce more offspring that are able to survive in the environment. The four factors of natural selection are Variations, Inheritance, Selection, and time.

Thus, the best summary of the process of natural selection is individuals pass on their best traits to their offspring. Hence, the ideal solution is option B.

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Microwave,radio signal,light,earthquake which does not belong

Answers

Answer:

earthquake does not belong to electromagnetic waves

Earthquake, because the rest are referring to electrical appliances.

21. An electric lamp is marked 2 points
240V, 60W. What is its
resistance (?) when it is
operated at the correct
voltage?
O A. 1/960
O B. 1/4
O 0.4
O D. 960​

Answers

Answer:

The resistance of the lamp is 960 ohms.

Explanation:

We have,

Voltage of electric lamp is 240 V and power is 60 W.

It is required to find the resistance of the lamp.

The power of an electrical device is given by :

[tex]P=\dfrac{V^2}{R}[/tex]

R is resistance

[tex]R=\dfrac{V^2}{P}\\\\R=\dfrac{(240)^2}{60}\\\\R=960\ \Omega[/tex]

So, the resistance of the lamp is 960 ohms.

For any energy source including batteries, there will be conduction of electricity if there is a potential
difference
similarity

Answers

Answer:

Difference

Explanation:

The electricity conduction happens when there is a flow of current. The flow of current from one point to another can only occur if there is a potential difference.

If there is not potential difference between two points the current will not flow and thus electricity conduction will also be not possible. The current in the circuit will flow from higher potential point to lower potential point.

If Earth was with no tilt, would we still have seasons at all? If so, how would they be different?

Answers

Answer:

If earth had no tilt, we would have no seasons.

Explanation:

As stated in the answer, if the earth had no tilt we wouldn't have seasons. The earth all around the globe would maintain the same temperature,

And due to the no tilt it would also change our orbit to a bit larger slant, in January when we are at our closest to the sun we WOULD have a mini summer. For the North and South Pole, they would remain cold.

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