Select each correct answer. More than one answer may be correct.
Which of the following forces between two objects can be repulsive?
gravitational force
magnetic force
electrostatic force

Answers

Answer 1
Electrostatic force
Not sure if there is any others

Related Questions

Which best describes how energy transferred from an electron in the solar wind compares with energy absorbed by an electron in the oxygen atom?

equal to

less than

No energy is transferred.

greater than

Answers

Answer:

equal to

(sorry if this is late)

Explanation:

Rest of the answers.

As solar wind approaches Earth, what happens to the charged electrons?

They are deflected as Earth’s magnetic field exerts force on them.

Which best describes how energy transferred from an electron in the solar wind compares with energy absorbed by an electron in the oxygen atom?

equal to

Which statement is accurate about how the aurora borealis is formed?

When the electrons fall to a lower energy state, they release energy as electromagnetic radiation, light.

How does the energy in the light of the aurora borealis compare to the energy as an excited electron returns to its original energy level?

equal to

During the formation of the aurora borealis, the electrons in an atom experience a change in energy levels. Which statement about this change is accurate?

First, the electron absorbs energy to move to a higher energy level.

The energy transferred from an electron in the solar wind is equals to energy absorbed by an electron in the oxygen atom.

What is energy transformation?

Energy transformation is the process of changing energy from one form to another form.

Energy transferred from an electron in the solar wind-The solar wind is a hot and paced flow of magnetized gas that streams away from the sun's atmosphere.

Energy absorbed by an electron in the oxygen atom-A part of energy is the spent for the kinetic energy with which the electron is moving.

It is known that  the energy transferred from an electron in the solar wind is equals to energy absorbed by an electron in the oxygen atom.

Hence the energy transferred from an electron in the solar wind is equals to energy absorbed by an electron in the oxygen atom.

Learn more about the transformation of energy here:

https://brainly.com/question/17448762

7) Which statement below best describes the motion of the cart under the conditions shown in the image below?

Answers

The cart is going left is your answer

the magnification produced by a plane mirror is +1. what does this mean?

Answers

Answer:

The magnification produced by a plane mirror is +1

means then the size of the image is equal to the size of the object. If m has a magnitude greater than 1 the image is larger than the object, and an m with a magnitude less than 1 means the image is smaller than the object.

what would happen if you try to put two balloons with the same charge together

Answers

Answer:

they would repel because they have the same charge. Charges that are different will stick together.

They would repel because of there same charge

A geosynchronous orbit is an orbit in which the satellite remains over the same spot on the planet

Answers

Answer: True.


Explanation: I’m not sure what’s the question here so I’m assuming it’s a true of false question.

Hope this helps! ^^

Answer:

Yes, the electromagnet still affects the compass needle.

Explanation:

the electromagnet still affects the compass needle.

I NEED HELP ASAP PLEASE!

Question 6 of 10
What is the slope of the line plotted below?
O A. 1
O B. -0.5
O C. 0.5
O D. 2

Answers

pretty sure its a? i took the test

The primary cause of weather is due to ______
in temperature around the Earth.
differences
similarities
coldness
abnormalities

Answers

Answer:

the answer is differences hope this helped :)

The main cause of weather is differences in temperature around the Earth.

What is the Weather?

The weather could define the atmosphere. It could be either hot, cold, cloudy, or stormy. In the case of the earth, the phenomena of weather should arise at the bottom layer of the planet's atmosphere. Due to this, the main cause of the weather should be of differences.

learn more about earth here: https://brainly.com/question/17252385

HELP PLZ!!! what’s the answer?

Answers

Answer: 8 g/cm^3

Explanation:

4 properties of light

Answers

-reflection and refraction of light
-dispersion of light
-absorption of light
-polarization of light

The center of mass of a cow and the center of mass of a tractor are 208 meters apart. The magnitude of the gravitational force of attraction between these two objects is calculated to be 1.8 × 10-9 newtons.
What would the magnitude of the gravitational force of attraction be between these two objects if they were 416 meters apart?
A.
1.62 × 10-9 newtons
B.
3.6 × 10-10 newtons
C.
9 × 10-10 newtons
D.
4.5 × 10-10 newtons

Answers

Answer:

Choice: D.

Explanation:

Newton’s Law of Universal Gravitation

It states that objects attract each other with a force that is proportional to their masses and inversely proportional to the square of the distance between them.  The formula is:

[tex]\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}}[/tex]

Where:

m1 = mass of object 1

m2 = mass of object 2

r     = distance between the objects' center of masses

G   = gravitational constant: [tex]6.67\cdot 10^{-11}~Nw*m^2/Kg^2[/tex]

The center of mass of a cow is at a distance of r=208 m from the center of the mass of a tractor. The gravitational force of attraction is [tex]F=1.8\cdot 10^{-9}\ N[/tex]. It's required to find the new force of attraction F' if the distance was r'=416 m.

It can be noted that r'=2r. If the distance is doubled, the new force is:

[tex]\displaystyle F'=G{\frac {m_{1}m_{2}}{(2r)^{2}}}[/tex]

[tex]\displaystyle F'=\frac{1}{4}G{\frac {m_{1}m_{2}}{r^{2}}}[/tex]

Substituting the original value of F:

[tex]\displaystyle F'=\frac{1}{4}\cdot 1.8\cdot 10^{-9}\ N[/tex]

Operating:

[tex]\displaystyle F'=4.5\cdot 10^{-10}\ N[/tex]

Choice: D.

A force of 2700 N is exerted on a car by a tow truck. The car accelerated at a rate 1.63 m/s? What is the mass of the car?

Round the the 2nd decimal places!

Answers

Answer:

1656.44 kg

Explanation:

The mass of the car can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{2700}{1.63} \\ = 1656.4417...[/tex]

We have the final answer as

1656.44 kg

Hope this helps you

What is the magnitude of the centripetal

force that must be applied in order for a

0.5 kg ball on a 2.0 m string to spin with

uniform circular motion at 5.0 m/s?

Answers

Answer:

Explanation:

6.25

The magnitude of the centripetal force that must be applied is 6.25 N.

The given parameters;

mass of the object, m = 0.5 kgvelocity of the object, v = 5 m/sradius of the string, r = 2 m

The magnitude of the centripetal force that must be applied is determined by the product of the mass of the object and the centripetal acceleration.

The centripetal force is calculated as follows;

[tex]F_c = ma_c = \frac{mv^2}{r} \\\\F_c = \frac{0.5 \times 5^2}{2} \\\\F_c = 6.25 \ N[/tex]

Thus, the magnitude of the centripetal force that must be applied is 6.25 N.

Learn more here: https://brainly.com/question/14905888

The planet Mars is located 228 million kilometers (2.28 x 1011 m) away from the sun. If it takes the sun light 760 seconds does light take to reach Mars from the Sun, how fast is the light travelling?

Answers

Answer: hey

Explanation:

Which of the following diagrams correctly shows the electron configuration of Sulfur, with atomic number 16?



Diagram A
Diagram B
Diagram C
Diagram D

Answers

Answer:

Diagram C

Explanation:

We are given  that Sulfur with atomic number 16.

We have to find that which diagram shows the electronic configuration of sulfur.

S=16

Its Diagram C

diagram C because ..........

Which of the following situations describes a non-contact force acting on an object?

Answers

I think its "a dropped penny sinks at the bottom of a pond". Because, non-contact force is a force that you don't touch, like gravity or weight, that falls but you didn't drop it on purpose nature did or gravity itself did.

A ball with a mass of 0.7 kg is thrown straight upward, flies up to its maximum height, and
then falls back down. If the ball was initially thrown with a kinetic energy of 250.1 joules,
how much potential energy will the ball have at its maximum height? Round your answer to
the tenths place.

Answers

Answer:

250.05 J

Explanation:

From the question given above and, the following data were obtained:

Mass (m) = 0.7 kg

Kinetic energy (KE) = 250.1 J

Potential energy (PE) =?

Next, we shall determine the velocity of the ball. This can be obtained as follow:

Mass (m) = 0.7 kg

Kinetic energy (KE) = 250.1 J

Velocity (v) =?

KE = ½mv²

250.1 = ½ × 0.7 × v²

250.1 = 0.35 × v²

Divide both side by 0.35

v² = 250.1 / 0.35

Take the square root of both side

v = √(250.1 / 0.35)

v = 26.73 m/s

Next, we shall determine the maximum height reached by the ball. This can be obtained as follow:

Initial velocity (u) = 26.73 m/s

Final velocity (v) = 0 m/s (at maximum height)

Acceleration due to gravity (g) = 9.8 m/s²

Maximum height (h) =.?

v² = u² – 2gh (since the ball is going against gravity)

0² = 26.73² – (2 × 9.8 × h)

0 = 714.4929 – 19.6h

Collect like terms:

0 – 714.4929 = – 19.6h

– 714.4929 = – 19.6h

Divide both side by –19.6

h = –714.4929 / –19.6

h = 36.45 m

Finally, we shall determine the potential energy of the ball at the maximum height. This can be obtained as follow:

Mass (m) = 0.7 kg

Acceleration due to gravity (g) = 9.8 m/s²

Maximum height (h) = 36.45 m

Potential energy (PE) =?

PE = mgh

PE = 0.7 × 9.8 × 36.45

PE = 250.05 J

Thus, the potential energy at the maximum height is 250.05 J.

Describe how charge is transferred from the ruler to the metal rod.

Answers

When the ruler is broughı near the inetal knob, it repels electrons in the metal. Electrons move away froni the ruler and down the metal rod. The knob now has a positive charge. The thin pieces of metal foil at the bottom of the metal rod now have a negative charge.
So, when a ruler that is negatively charged touches a metal rod then the metal rod also becomes negatively charged because of conduction process. This is because negative charge moves from the rules towards the metal rod and hence, it spreads over to the metal rod.

Please do #24

24. What is the benefit the Hubble’s ability to detect infrared radiation?

Answers

Answer:

i think its D Or maybe C not sure rly

Q2) A salesman travels a distance of 50km in 2 hours and 30 minutes. How much faster, in kilometers per hours, on an average, must he travel to make a trip in 5/6 hours less time)

A) 10
B) 20
C) 30
D) None of these

Explain how you got your answer

Answers

Answer:

30 maybe?

Explanation:

Answer:- 30 km/hr

Given :- Distance covered by Salesman 50 km

Time taken;- 2 hrs and 30 minutes

Speed of salesman: Distance/ time taken

50 / 2 1/2 = 20 km/hr

He has make it 5/6 less

2 1/2 —5 / 6 = 5 / 3 hrs

Speed : Distance / Time

50 km / 5/3 = 30

He has to travel at 30 km per hour.

Which of these nebulae is the odd one out?

Answers

Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

Answer:

nebula

Explanation:

Newton’s second law: The acceleration (a) of an object is directly proportional to the force on the object (F) and inversely proportional to its mass (m).

F < The greater the force, the greater the acceleration
a = -- OR F=ma
M< The greater the mass the less the acceleration

Answers

Answer:

there is the answer

Explanation:

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

explain the basic concept that involves projectiles

Answers

A projectile is an object upon which the only force acting is gravity. There are a variety of examples of projectiles. An object dropped from rest is a projectile (provided that the influence of air resistance is negligible). ... By definition, a projectile has a single force that acts upon it - the force of gravity.

A box that weight 1000 N is lifted a distance of 20.0 m straight up by a rope and pulley system . The work is done in 10.0 seconds what is the power devloped

Answers

Answer:

P = 2,000 W

Explanation:

Work and Power

Work is the amount of energy transferred by a force over a distance. It's a scalar quantity, with SI units of joules.

If both the force F and displacement s are parallel, then we can use the equivalent scalar formula:

W=F.s

Power is the amount of energy transferred or converted per unit of time. In the SI, the unit of power is the watt, equal to one joule per second.

The power can be calculated as:

[tex]\displaystyle P=\frac {W}{t}[/tex]

Where W is the work and t is the time.

A box with a weight of 1,000N is lifted by s=20 m by a rope and pulley system. The system exerts a force equal to the weight of the box, thus F=1,000 N. The work done by the system is:

W =1,000 N * 20 m

W = 20,000 J

Now we calculate the power developed by the system in t=10 seconds:

[tex]\displaystyle P=\frac {20,000}{10}[/tex]

P = 2,000 W

a sound wave has a frequency of 20 Hz and a wavelength of 100 m. what is the wave speed? a) 2000m/s b) 100m/s c)50 m/s d)0.20 m/s

Answers

Answer:

A. 2000 m/s

Explanation:

An object with a mass of 30 kg moves at a rate of 15 m/S over distance of 10 m. 900 joules of work was done in 10 seconds. What was the power generated by this project?

Answers

Answer:

P = 90 W

Explanation:

Mass of an object, m = 30 kg

Speed of the object, v = 15 m/s

Distance, d = 10 m

Work done, W = 900 J

Time, t = 10 s

We need to find the power generated by this project. We know that power is equal to work done divided by time taken.

So,

[tex]P=\dfrac{W}{t}\\\\P=\dfrac{900\ J}{10\ s}\\\\P=90\ W[/tex]

So, the required power generated is 90 W.

Which object forms by the contraction of a large sphere
of gases causing the nuclear fusion of lighter elements
into heavier elements?

Answers

a star- is formed by the contraction of a large sphere of gases

1. How do humans get energy from food?
A Small intestine is where most food is first taken into cells
B. There can be thousands of mitochondria inside cells
Waste products like carbon dioxide are released through the lungs
D Energy is released through a series of steps in the form of ATP


please help this is due today

Answers

Answer:

A

Explanation:

I took that test

Answer:

D

Explanation:

Through the process of cellular respiration, Energy in food is converted into energy that can be used by the body.

During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, energy is transferred  to ATP  

The battery is made up of three 1.5 V cells.
Calculate the total potential difference of the battery.

Answers

Answer: 4.5 V

Explanation:

Given

The voltage of each cell is 1.5 V

If they are connected end to end their potential added to give a higher potential i.e. 1.5+1.5+1.5=4.5 V

The question is in the photo

Answers

I think it’s A. towards the n pole

Can you answer my questions. Please help me ​

Answers

Answer:

answered it.................

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