The downward force of gravity and the upward force of air resistance on a ball are both 5N. What is the ball's acceleration?

Group of answer choices

-5 m/s

5 m/s

10 m/s

0

Answer: A

Explanation:

Answer: True

Explanation: I just took the quiz.

Answer: Density is defined as mass divided by volume, therefore: 100g/25cm3 = 4 g/cm3.

Explanation:

Answer:

Density is defined as mass divided by volume, therefore: 100g/25cm3 = 4 g/cm3.

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:

C. Beats

Explanation:

When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.

Answer:

beats

Explanation:

got it right

Answer:

Perhaps seizures

Explanation:

Answer: (B) 4 Seconds

Explanation: The Balance of weight and air resistance equals out after 4 seconds giving you your terminal velocity. (the fastest speed you can travel at your given weight and air resistance)

Answer : B. The sjydriver has the fastest speed at 4second.

What is air resistances ?

--Air resistance is a type of friction force.

-- Air resistance, there are not two solid surfaces in contact.

-- Air resistance is the frictional force acting on an object and the air around them.

--This means that friction always pushes in the opposite direction than the skydiver is travelling, therefore slowing the skydiver down.

Concept Used

-- When the skydiver jumps off the plane, their speed would accelerate because the pull of gravity on the person, or their weight force, is greater than the air resistance slowing them down.

-- A person’s weight force will always stay the same.

-- The weight force of the person will equal their air resistance.

-- This would make the skydiver travel at constant speed.

--To travel at constant speed forces have to be equal to zero.

--This constant speed is called terminal velocity

Learn more about terminal velocity from https://brainly.com/question/8351585

#SPJ1

Answer:

Windy weather/ stormy weather

Explanation:

Answer:

It would most likely be 3!

Explanation:

A scientist taking photos of the stars would be using those photos as a sort of documentation. The only reason to record this is for data or research purposes, meaning that 1 and 2 are incorrect. While 4 is a possibility, it is a fruitless endeavor, as even if you managed to count all the stars in the night sky at one point, it would completely discount every star not visible from that part of the globe, making the data false/pointless. Again, this is just my educated assumption, but I do think the answer is 3. Good luck :D

Answer:

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.

Explanation:

The question: The Chemical equation represents________reaction

Answer:

Explanation:

below i solved :)

Answer: 80kg

Explanation:

Answer:

Time taken to accelerate is 8s.

Explanation:

\(v=u+at\)
\(50=10+5t\)
t=8

Earth is revolving around the sun in an elliptical orbit, with sun as one of its focus. So, the correct shape is A.

Newton's law of gravity states that, every body in the universe attract each other with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

Here,

Earth is revolving around the sun in an elliptical orbit, with sun as its focus.

According to Kepler's law of orbits, every planet moves in an elliptical orbit with sun as one of its focus.

From, Newton's law of gravity and Kepler's law of orbital motion, we can say that the earth is moving in an elliptical orbit because, the earth is experiencing gravitational force of attraction due to the sun at the centre and also due to the other planets revolving in the solar system.

Due to the overall gravitational force, the earth will have to adjust the orbital motion in order to attain stability. As a result, the orbit of earth will have a distortion from its circular shape, forming an elliptical shape for orbit, which is a stable shape.

Hence,

Earth is revolving around the sun in an elliptical orbit, with sun as one of its focus. So, the correct shape is D

To learn more about Newton's law of gravity, click:

https://brainly.com/question/13153583

#SPJ2

Answer:

M = F × d

I hope it will be helpful for you.

Answer:

moment=force x perp. distance from the pivot

unit= Nm

Answer:

60

Explanation:

15 miles

Answer:

My answer to the question is option C.

A balanced chemical equation reflects the idea that the mass of the products is equal to the mass of the reactants. The correct option is C.

In a balanced chemical equation, the mass of the products must be equal to the mass of the reactants.

According to the law of conservation of mass, in a chemical reaction, the mass of the products must be equal to the mass of the reactants because matter cannot be created or destroyed, it only can be transformed.

For example, for the given reaction:

CH₄ + 2O₂ → CO₂ + 2H₂O

The mass of the reaction is:

\( m_{CH_{4}} + m_{O_{2}} = m_{CO_{2}} + m_{H_{2}O} \)

So the sum of the masses of the reactants must be equal to the sum of the masses of the products.

Therefore, the correct option is C.    

You can find more about the law of conservation of mass here: https://brainly.com/question/14236219?referrer=searchResults

I hope it helps you!              

Answer:

C.

Explanation:

Answer:

15 protons and 18 electrons

General Formulas and Concepts:

Chemistry

Explanation:

We are given the element P. P is 15 on the Periodic Table, meaning it has 15 protons and 15 electrons (all elements are in neutral form).

P³⁻ ion means the element now has a negative charge of 3. We know protons have a positive charge and electrons have a negative charge. 3- means we will have more electrons than protons.

Therefore, P³⁻ would have 15 protons and 18 electrons:

15 (+) + 18 (-) = 3 (-)

The correct answer is NO because the moon appearance is relatively base on the positioning of Sun - Earth - Moon

A moon is an opaque object. It does not give or illuminate light on its own, It reflects light from from the sun to the earth. The appearances of moon are;

In this activity, if you modeled the Sun–Earth–Moon system and you remove one object from this system model, would the model still explain the changes to the Moon’s appearance?

The answer is capital NO.

The reason is simply because the moon appearance is relatively base on the positioning of Sun - Earth - Moon relationship. That is, the moon appearances of waxing crescent, waxing gibbous, waning crescent and waning gibbous, all depend on the position of the Sun, Moon and the earth.

Therefore, If you removed one object from this system model, the model cannot explain the changes to the Moon’s appearance again.

Learn more about Moon here: https://brainly.com/question/17764105

#SPJ1

1. The kinetic energy of the truck is 1959940.8 J

2. The kinetic energy of the car is 463037.04 J

The kinetic energy of the 6000 Kg truck can be obtained as follow:

KE = ½mv²

KE = ½ × 6000 × 25.56²

KE = 1959940.8 J

Thus, the kinetic energy is 1959940.8 J

The kinetic energy of the 6000 Kg truck can be obtained as follow:

KE = ½mv²

KE = ½ × 1200 × 27.78²

KE = 463037.04 J

Thus, the kinetic energy is 463037.04 J

Learn more about kinetic energy:

https://brainly.com/question/25959744

#SPJ1

Answer:

A row is a period on the periodic table.

Answer:

A row

Explanation:

Answer: sound travels fastest only through solids.

Answer:One way that the world’s ocean affects weather and climate is by playing an important role in keeping our planet warm.

Explanation:The majority of radiation from the Sun is absorbed by the ocean, particularly in tropical waters around the equator, where the ocean acts like a massive, heat-retaining solar panel. Land areas also absorb some sunlight, and the atmosphere helps to retain heat that would otherwise quickly radiate into space after sunset.

Here are three simple machines that are commonly used in backyards:

Wheelbarrow - This is a type of lever. The wheel and axle allow for easier transportation of heavy items.

Shovel - This is a type of inclined plane. The flat, angled blade allows for easier digging and lifting of soil or other materials.

Garden shears - This is a type of lever. The handles act as levers to increase the force applied to the blades for easier cutting of branches and other materials.

Answer:

It is a type of energy

Explanation:

We have majorly two type of energy which is the kinetic energy and the potential energy.

The acceleration is different in both cases because, the force applied is different. Acceleration is force divided by mass of the object. Thus, Justin had greater force than Oscar.

Force is an external agent acting on body to change its motion or deform it. There are various kinds of forces such as frictional force, gravitational force, nuclear force etc.

According to Newton's second law of motion, the force acting on an object is the product of its mass and acceleration.

Thus, F = ma

Hence, as the force increases the body is accelerated more.

With the same mass for the two balls, the force used to hit it was different and thus, the acceleration differs in both cases. Therefore, Justin has the greater force.

Find more on force:

https://brainly.com/question/19734564

#SPJ2

Answer: A. It acts with an object adding to its speed.

Explanation:

Hope this helps!