What happens to the force between two charges if one of the charges are doubled?
it decreased by a quarter
it quadruples
it doubles
it cuts in half

Answer:

2.56J

Explanation:

The work done in lifting up the pumpkin is  25.1 J.

We must know that the work done when the pumpkin is lifted up a distance of 0.8 m is obtained using the formula of work done under gravity. Hence, applying that formula;

Work done = mgh

m = mass

g = acceleration due to gravity

h = height

Work done = 3.2 Kg × 9.8 ms-2 × 0.80 m

Work done =  25.1 J

Learn more about work done: https://brainly.com/question/13594876

Answer:

(A.) H2 --> 2H+ 2 e- (oxidation)

Explanation:

A. oxidation is the removal of electron(s) from a substance. This is the case here, since AFTER the reaction you can see that there were electons "removed" from H2.

H2 --> 2H+ 2 e- (oxidation)

B. reduction is the addition of electron(s) to a substance

1/2 O2 + 2 e- + 2H+ --> H2O (reduction)

By the way:

Biochemical reactions often involve the transfer of complete hydrogen atoms, meaning an electron and a proton.

The substance oxidized (H2) is electron donor.

The substance reduced (O2) is electron acceptor.

Just remember this:

Prior to the reaction, the e donor is always reduced.

Prior to the reaction, the e acceptor is always oxidized.

The work input = Fi × di

To solve for work input, you need to know the force acting on an object and the distance it moves in the direction of the force. Work input is defined as the product of force and distance, given by the formula:

Work Input = Force × Distance × cosθ

Where θ is the angle between the force vector and the direction of motion. If the force is applied in the direction of motion, then θ = 0 and cosθ = 1, so the formula simplifies to:

Work Input = Force × Distance

For example, if you are pushing a box with a force of 50 newtons over a distance of 10 meters, the work input would be:

Work Input = 50 N × 10 m × cos(0°) = 500 Joules

Read more on work inputhttps://brainly.com/question/8964002

#SPJ1

Answer: F i × d i

Explanation:

force = 10,000 N

distance= 1000 meters or 1 km

work done = Force * Distance

work done= 10000* 1000 = 10000000 Nm or 10000 kNm

Answer:dam D: fall height of 100 feet

dam D: fall height of 100 feet

dam C: fall height of 135 feet

dam C: fall height of 135 feet

dam A: fall height of 175 feet

dam A: fall height of 175 feet

dam B: fall height of 75 feet

dam B: fall height of 75 feet

Explanation:

Four rivers have the same volume of water flow over time but fall from different heights to power hydroelectric dams. The dam would provide the most hydroelectric power that have maximum height that is 175 feet.

Using the rise or fall of water, hydroelectric power is generated. For instance, a large, swiftly running river has a lot of moving energy that generates enough water pressure to turn a turbine's blades and power an electric generator. The same water pressure can be produced by letting water fall from a tremendous height. To create water pressure, we store water and raise it to tremendous heights using dams. Dams are among the largest man-made constructions ever constructed.

Power = Water Flow Rate × Acceleration Due to Gravity × Reservoir Height × Coefficient of Efficiency

So if we increase the height than power increases. Maximum height have maximum power.

To learn more about hydroelectric power refer to the link:

brainly.com/question/15228003

 #SPJ5

34N is the correct answer :)

Answer:

34N

Explanation:

Answer:

Agriculture has been the cause of significant modification of landscapes throughout the world. Tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.

Explanation:

Answer:

A. hot

Explanation:

The current flowing through the wire makes the wire hot and drains the battery quickly.

To find the volume of the block, subtract the initial water volume from the final water volume, convert the change in water volume to cubic centimeters, and consider it as the volume of the block.

To find the volume of the block using the measurements provided.

1. Calculate the change in water volume:

The initial water volume is given as 62.3 mL, and the final water volume is given as 89.5 mL. To determine the change in water volume, we subtract the initial volume from the final volume: 89.5 mL - 62.3 mL = 27.2 mL. This value represents the increase in water volume caused by placing the block in the graduated cylinder.

2. Convert the change in water volume to cubic centimeters:

Since 1 mL is equivalent to 1 cubic centimeter (cc), we can directly convert the change in water volume from milliliters to cubic centimeters. In this case, the change in water volume is 27.2 mL, which is also equal to 27.2 cc.

3. Determine the volume of the block:

When the block is placed in the graduated cylinder, it displaces some amount of water, resulting in an increase in water volume. By measuring this increase in volume, we can determine the volume of the block itself. In this case, the change in water volume of 27.2 cc represents the volume of the block.

By following these steps, we can find the volume of the block based on the provided measurements.

Therefore, By deducting the initial water volume from the final water volume and converting the difference in water volume to cubic centimeters, the block's volume can be calculated. the volume of the block is 27.2 cc.

To learn more about measurements click:

https://brainly.com/question/28109798

#SPJ1

Answer:

they ARENT related

Explanation:

Two physical characteristics of a wave are amplitude and wavelength. ... The amplitude or height of a wave is measured from the peak to the trough. The wavelength is measured from peak to peak. Wavelength is directly related to the frequency of a given wave form.

(copy and paste)

Answer:

Wave W is a sound wave, Waves X and Y are light waves, and it is impossible to tell what kind of wave Wave Z is.

Explanation:

W      travels fastest through metal

X       travels fastest through air,

Y       travels more slowly through water than air    

Z       travels more slowly at cool temperatures

W appears to be sound wave  as sound travels fastest through metal .

X appears to be light wave as light travels fastest in air .

Y also appears to be light wave as  speed of light is reduced when it passes from air to water .

Z  It is impossible to tell anything about the nature of Z wave .

Answer:

d

Explanation:

Answer:

He calculated his average speed.

Explanation:

Waldo calculated an average of his speed in 2 hours rather than his speed whilst driving which means instead of doing 50/1 hour = 50 mph, he did 50/2hours which is how he got 25 mph. Hope this helps!

Answer:

39,200J

Explanation:

just took the test

The meteor's potential energy if it has a mass of 10kg at an altitude of 400 m will be 39200 J

Potential Energy that depend upon the relative position of various parts of system . It is an energy possessed by an object by virtue of its position or configuration.

mass(m)  = 10kg

g (acceleration due to gravity) = 9.8m/s^2

altitude(height (h)) = 400m

Meteor's Potential energy = m * g * h

                                           = 10 * 9.8 * 400 = 39200 J

correct option will be a) 39200 J

learn more about Potential Energy :

https://brainly.com/question/14404024?referrer=searchResults

#SPJ3

Answer:

Forty million years ago, the continent of India, which was being carried northward by the Indo-Australian plate, collided with Asia forming the Himalayan mountain range (fold mountains). Since the initial encounter, the subcontinent of India has moved 2,000 kilometers farther north at a rate of 5 centimeters a year, sliding beneath Asia as it moves. In 10 million years India will plow into Tibet a further 180km. This is about the width of Nepal.

Answer:Since the initial encounter, the subcontinent of India has moved 2,000 kilometers farther north at a rate of 5 centimeters a year, sliding beneath Asia as it moves. In 10 million years India will plow into Tibet a further 180km. This is about the width of Nepal.

Answer:

D. The equator is half of a circle used to describe the northern half of the Earth.

Explanation:

hope it helps

Answer: C

Explanation: The equator divides the earth into North and South pole

The magnet produces a magnetic field. Item A makes the magnetic field in the electromagnet.

Explanation:

Item A is called a magnet. It has a North pole and a South pole. The electrons move from the North to the south poles, creating a magnetic force.

This Magnetic field creates a magnetic field around a magnet.

Answer: D

Explanation: it is made of metal which attracts the magnetic force field

Answer: A

Explanation:The Pawn moves directly forward, never backward or to the side. Pawns capture a piece that is one square diagonally forward. Though Pawns normally cannot move diagonally, this is the only way they capture.

Based on the information provided, the best move to capture a hanging piece would be: A) Nxg3

Nxg3 would be the best move to capture a hanging piece.

This move involves sacrificing the knight to capture the hanging piece, which could be a bishop or pawn, depending on the position of pieces. After Nxg3, the opponent may capture the knight with different piece, but the player who made the move will have successfully captured the hanging piece.

However, it's important to note that the best move ultimately depends on the overall strategy of the player and the position of the other pieces on the board.

To know more about chess, refer

https://brainly.com/question/1401793

#SPJ1

That is all I know I am afraid. Sorry but I don’t really know how to explain this one.

Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.

Explanation:

Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping

Answer:

76

Explanation:

38 x 2 = 76

Answer:

There are many factors that can affect the speed of a car, including:

Engine size and power: A car with a larger and more powerful engine will be able to accelerate faster and reach higher speeds than a car with a smaller engine.

Transmission: Cars with manual transmissions typically have better acceleration than those with automatic transmissions because the driver can control the gears and timing of the shift.

Aerodynamics: Cars that are designed with aerodynamic shapes and features, such as a low profile or smooth body, will be able to reach higher speeds and maintain them more easily than cars with less aerodynamic designs.

Weight: Cars that are lighter in weight will be able to accelerate faster and reach higher speeds than cars that are heavier.

Tires: Cars with wider tires will typically have more grip and better traction, which can allow them to reach higher speeds and handle better.

Suspension: Cars with better suspension systems will be able to maintain stability at high speeds and handle better.

Driving technique: The way a driver handles a car can also affect its speed, a skilled driver can make the most of the car's performance and get a better outcome.

Answer:

distance and time

Explanation:

Speed depends upon distance and time. So, if the distance is long but time is less, the speed will be high. On the other hand, if the distance is short and time is enough, the speed of the car will be slow.

Hope it helped. Pls mark it as the BRAINLIEST!

Answer:

You could find billions of stars in a galaxy, hope this helps.

The answer is billons, 100 billon to be exact.

If you looked up in the night sky, you'd see so many stars. Everyone else looking up can see them too. Weather they are in Canada, or Flordia. There isnt just 100, or 1000 or 1 millon, there are billons.

Therefore, your answer is D. Billons.

If this helped then..

~NatLikesAnime~

#LearningWithBrainly

Answer: Explanation:

Plants and animals each produce the gases that the other needs to live. Plants need carbon dioxide—people and other animals exhale carbon dioxide as a waste product. People and other animals need oxygen—plants produce oxygen during an important process called photosynthesis, which turns the sun's energy into nutrients.

Answer:

B. The media released popular information.

Explanation:

We do not share the power in our media.

Answer:

e

Explanation: