What is the effect on Earth's atmosphere of a strong solar flare?

Answers

Answer 1

Answer: The Earth has a magnetic field which prevents the energetic charged particles (high-energy protons) and electromagnetic radiation (x-rays) to penetrate the Earth's atmosphere. However, despite the presence of magnetic field, there are still some noted effects of solar flare towards Earth. Solar flares cause the Earth's atmosphere to obtain high level of ions. There are also some disruptions in wireless communications when solar flares occurs. Another effect of solar flares which is considered of high beauty is the auroras. The magnetic field cannot prevent all charged particles produced from solar flares from penetrating the Earth's atmosphere. Some of this charged particles, specially the electrons, find their way at the poles, either the North or the South. These particles collide with the present particles in the atmosphere which causes friction among particles and glow.

Related Questions

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At the local grocery store, you push a 14.5-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 12.0 N you now accelerate the cart from rest through a distance of 2.29 m in 3.00 s. What was the mass of the dog food?

Select all of the following that describes momentum, p [mark all correct answers] a. momentum is the product of mass and acceleration
b. momentum is the product of mass and speed
c. momentum is the product of mass and velocity
d. momentum is a scalar quantity
e. momentum is a vector quantity
f. momentum has unit of newton (N)
g. momentum has unit of kgm/s
h. momentum has unit of kgm2/s2
i. momentum has unit of joule (J)
j. momentum is one-half the product of mass and the square of the object's speed

Answers

Answer:

c. Momentum is the product of mass and velocity

e. Momentum is a vector quantity

g. Momentum has unit of kgm/s

Explanation:

Linear momentum P

P = m .v

m =mass

v=Velocity

If mass take in kg and velocity is in m/s then momentum p will be in kg.m/s.

1. momentum is the product of velocity and mass.

2.Momentum is a vector quantity.

3.Momentum have kg.m/s unit.

So the following option are correct.

c. Momentum is the product of mass and velocity

e. Momentum is a vector quantity

g. Momentum has unit of kgm/s.

Note-

1.Joule is the unit of energy.

2.One-half the product of mass and the square of the object's speed is known as kinetic energy.

The diagram shows two bar magnets. They are cut along the dashed line, and then the two marked ends are placed near each other. Which statement best explains how the pieces will react?

A) The pieces will repel because the cut end of the top magnet is not a magnetic pole.

B) The pieces will attract because the cut end of the top magnet is not a magnetic pole.

C) The pieces will repel because the cut end of the top magnet is a south pole.

D) The pieces will attract because the cut end of the top magnet is a north pole.

Answers

The answer to this problem is "OPTION C" i.e. The pieces will repel because the cut end of the top magnet is a south pole.

A magnet as a collection of tiny magnets, called magnetic domains. Each of these domain reinforces the magnetic fields of the other domains and hence the net magnetic field of magnet is generated. Each one of these domains have a tiny north and south pole. If you cut a magnet in half (along the line suggested in the problem), the newly cut faces will become the new north or south poles of the divided parts.

Answer:

Explanation:

A man is paddling a kayak with the force of 254 N, at an acceleration of 1.39 m/s2. If the kayak weighs 30 kg, what is the mass of the man?

Answers

The answer is approximately 152.73kg. But if you report it to the correct significant figure, it will round up to 200Kg.

A horizontal 20.-newton force is applied to a 5.0-kilogram box to push it across a rough,horizontal floor at a constant velocity of 3.0 meters per second to the right.

Calculate the coefficient of kinetic friction between the box and the floor. [Show all work, including
the equation and substitution with units]

Answers

The formula to work out the coefficient of dynamic (kinetic) friction is F=uR where F is the force applied, u is the coefficient of dynamic friction, and R is the reaction force. This is based on the principle the object is moving at a constant velocity which is the case in this question.

Rearranging this we get u=F/R
Substituting in the values we get u=20/50=2/5=0.4

Therefore the coefficient of kinetic friction between the box and the floor is 0.4

The coefficient of kinetic friction between the box and the floor will be $\boxed{0.4}$ .

Further Explanation:

Given:

The mass of the box is $5\,{\text{kg}}$ .

The force applied on the box is $20\,{\text{N}}$ .

The constant velocity at which the box moves is $3\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}$ .

Concept:

The box is pushed on the rough floor and due to this; the box will experience a friction force acting in the direction opposite to the motion of the box.

Since the box moves with a constant velocity of $3\,{{\text{m}}\mathord{\left/{\vphantom{{\text{m}}{\text{s}}}}\right.\kern-\nulldelimiterspace}{\text{s}}}$ , the acceleration of the box will be considered as zero.

From Newton’s second law of motion, as the acceleration of the box is zero, the net force acting on the box is zero.

$\boxed{{F_(net)}=m* a}$

The free-body diagram of the box moving on the rough floor is as shown in figure attached below.

From the above explanation, in order to make the net force zero, the friction acting on the box should be equal to the force applied on the box.

${F_(friction)}={F_(applied)}$

The friction force acting on the bxlock is:

$\begin{aligned}{F_(friction)}&=\mu N\n&=\mu mg\n\end{aligned}$

Substitute the value of friction force in the above expression.

$\begin{aligned}\mu mg&={F_(applied)}\n\mu\left({5*10}\right)&=20\n\mu &=\frac{{20}}{{50}}\n&=0.4\n\end{aligned}$

Thus, the coefficient of kinetic friction between the box and the floor will be $\boxed{0.4}$ .

Learn More:

1. A 30.0-kg box is being pulled across a carpeted floor by a horizontal force of 230 N brainly.com/question/7031524

2. Choose the 200 kg refrigerator. Set the applied force to 400 n (to the right). Be sure friction is turned off brainly.com/question/4033012

3. Which of the following is not a component of a lever brainly.com/question/1073452

Answer Details:

Grade: High School

Subject: Physics

Chapter: Friction

Keywords:

Horizontal 20N force, 5 kg box, push, a rough horizontal floor, constant velocity, friction force, coefficient of kinetic friction, box and the floor.

Bob weighs 80 pounds. He ran up the steps which rose 14 feet. Fred weighs 110 pounds. He ran up the same steps as Bob. If both boys reached the top of the 14-foot stairs at the same time, which boy had the greatest horsepower?

Answers

Bob gained (80lbs x 14ft) = 1120 ft-lbs of energy.

Fred gained (110lbs x 14ft) = 1540 ft-lbs of energy

Since they both took the same amount of time, Fred's power (rate
of doing work) was greater than Bob's power (rate of doing work).

Answer:

Bob gained (80lbs x 14ft) = 1120 ft-lbs of energy.

Fred gained (110lbs x 14ft) = 1540 ft-lbs of energy

Since they both took the same amount of time, Fred's power (rate

of doing work) was greater than Bob's power (rate of doing work).

Explanation:

A lamp is plugged into a standard 120-volt outlet. If the lamp draws a current of 0.5-amps, how much energy is consumed in 1 minute?

Answers

One handy formula for electrical power ... the one that's
most helpful here ... is:

Power = (voltage) x (current).

so Power = (120 volts) x (0.5 ampere) = 60 watts.

Now 60 watts means 60 joules of energy per second.
In one minute, the lamp dissipates

(60 joules/second) x (60 seconds/minute) = 3600 joules/minute.

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