A 21.2-kg object is being pulled in one direction by a force of 68.8 N while a force of 26.5 N pulls in the opposite direction. What is the acceleration of the object

 A 21.2-kg Object Is Being Pulled In One Direction By A Force Of 68.8 N While A Force Of 26.5 N Pulls

Answers

Answer 1

The net force is in the direction of the larger force. If we take that direction to be positive, then the net force has a magnitude of

68.8 N - 26.5 N = 42.3 N

Use Newton's second law to solve for the acceleration:

F = m a

42.3 N = (21.2 kg) a

a = (42.3 N) / (21.2 kg)

a2.00 m/s²

(you might also try 1.99 or 2.01 in case that doesn't get accepted)


Related Questions

Water boils at 100°C and turns into steam. Which similarities or differences are there between water in these two states? (1 point)

The particles will have more space between them and will be moving at higher speeds as steam.

The particles will have more space between them as steam, but they will be moving at the same speed in both states.

The particles will have more space between them as a liquid, but they will be moving at the same speed in both states.

The particles will have more space between them as a liquid, but they will be moving faster as steam.

Answers

Answer:

My answer was A not sure if its correct as i am still doing the rest of the questions.

Explanation:

The particles will have more space between them and will be moving at higher speeds as steam compare to water.

What is latent heat ?

The quantity of heat (in joules or calories) per mole or unit mass of the substance undergoing a change in state is the typical way to represent latent heat.

The latent heat involved in melting solids or freezing liquids is referred to as the "heat of fusion," while the latent heat involved in vaporizing solids or liquids or condensing vapor is referred to as the "heat of vaporization."

When water boils at 100°C and turns into steam, water vaporizes into steam by absorbing heat of vaporization. This heat energy remains in the steam as kinetic energy and makes their movement fast.

So, The molecules will have more space between them and will be moving at higher speeds as steam compare to water.

Learn more about latent heat here:

https://brainly.com/question/13428994

#SPJ2

ANOTHER 40 POINTS!!!
Why is it important for a system of objects to be isolated in order for the law of conservation of energy to apply?
A. The energy of each object in the system must not change.
B. The system must not exchange energy with other systems.
C. Energy must be able to freely move in and out of the system.
D. The type of energy that each object in the system has must always remain the same.

Answers

B - the stystem must nit exchange energy with other systems

What are the different forms of treatments available for somatoform disorders?

Answers

Answer:

Treatment options include medications, particularly tricyclic antidepressants and SSRIs,21,22 and psychotherapy. Nonpharmacologic treatment strategies (e.g., massage, acupuncture) may also be beneficial. patients initially presented with symptomatic pain due to a shoulder injury.

Somatoform disorders can be treated by psychotherapy and through medications.

What are somatoform disorders?

Somatoform disorders are a group of psychiatric disorders whereby patients have a wide variety of clinically significant but unexplained physical symptoms.

The treatment options for somatoform disorders include:

PsychotherapyMedications Yoga and meditationAcupuncture

Therefore, somatoform disorders can be treated by psychotherapy and through medications.

Learn more about somatoform disorders at: https://brainly.com/question/27251201

#SPJ2

A book is at rest on a table. Identify the correct free-body diagram for this situation.

Answers

Show a picture .. of what your doing

Answer:

the 3rd pic is correct

Explanation:

because the arrows are going away from each other.

Mars has two moons. What does the orbital speed of these moons depend on?

Answers

Answer:

their masses and their distances from Mars

Explanation:

Hope this helped

Also can u pls mark me brainliest

The distance between two stations is 180 km. A train takes 2 hours to cover this distance. The speed of the train in m/sec is......please help i rlly need it ....Please

Answers

Answer:

Av = 25 [m/s]

Explanation:

To solve this problem we must use the definition of speed, which is defined as the relationship between distance over time. for this case we have.

[tex]Av=\frac{distance}{time}[/tex]

where:

Av = speed [km/h] or [m/s]

distance = 180 [km]

time = 2 [hr]

Therefore the speed is equal to:

[tex]Av = \frac{180}{2} \\Av = 90 [km/h][/tex]

Now we must convert from kilometers per hour to meters per second

[tex]90[\frac{km}{h}]*1000[\frac{m}{1km}]*1[\frac{h}{3600s} ]= 25 [m/s][/tex]

What is the momentum of a 10 kg object traveling at 4 m/s?

Answers

answer:40kg m/s
explanation: momentum =mass x velocity

The picture shows an aerialist walking on a tightrope and holding a balancing bar.
An action-reaction pair of forces exists between-

A. the aerialist's arms and legs

B. the rope and the balancing bar

C. the aerialist's feet and the rope

D. the aerialist's body and shoes.

Answers

A. The aerialist’s feet and the rope

An action reaction pair of forces exists between : ( A ) The aerialist arms and legs

Action-reaction pair of forces

Action-reaction pair of force comprises of the force that acts on the object as a action force and the force experiened by the object due to newton third law of motion as the reaction force. Therefore in the diagram an action reaction pair of forces can be experienced between the aerialist arms and legs

Hence we can conclude that An action reaction pair of forces exists between : ( A ) The aerialist arms and legs.

Learn more about Action-reaction pair of forces :  https://brainly.com/question/354208

#SPJ2

Children should be able to speak clearly and understandably by:
One year old.
Two years old.
Three to four years old.
Four to five years old.
After five.

Answers

Answer:

3 to 4

Explanation:

By the time they reach 3 they have achieved speaking 200 or even more

Which two terms describe the relationship between the two variables in this graph?

Answers

Show a picture of the graph

Look at the picture below.
What will happen to the
water if it is left in the sun
for an extended amount of
time?

Answers

evaporation will happen! :)

Difference between lens formula and mirror firmula?

Answers

In lenses

1/f=1/v-1/u

in all cases light considered to travel from left to right (→).

if the distance measured in the direction of light then the is positive.

distances are measured from the pole or mid point of the lense

because object is at the left of the lens so it is measured against the direction of light therefore u is considered as negative

if image is on the right side it is measured in the direction of light so v is positive.

Focal length f of convex lens is considered as positive

Focal length of concave lens is considered as negative

same rules are followed by the concave lens.

In it

1/f=1/v+1/u

In case of cocave or convex mirror same rules are followed

focal length of convex mirror is positive as it is measured in the direction of the light from the central point of mirror.

The focal length of concave mirror is negative because it is measured against the direction of the light.

Other distances are also governed by the Same above rules.

A girl throws a pebble into a deep well at 4.0 m/s (downward). It hits the
water in 2.0 s.
a. How far below the ground is the water's surface?
b. What is the pebble's average velocity?

Answers

The answer should be A

Once a person passes the age of 65, he or she should stop exercising.
Please select the best answer from the choices provided.
ОТ
OF

Answers

Answer: False

People age 65 and older still need exercise. Although the intensity of each workout won't be as high compared to younger ages. Everyone needs exercise to keep their heart healthy, to lower the bad cholesterol, etc.

Answer:

no

Explanation:

very false

A 200kg car is coasting to the right and slowing down due to a friction force of 200N.

Answers

By Newton's second law, the net force on the car is

F = m a

where m is the mass of the car and a is magnitude of the acceleration.

The car is slowing down, so the net force opposes the direction in which the car is moving. Vertically, the car is in equilibrium, the net force is entirely due to friction. Taking the direction opposite the car's motion to be negative, we have

- 200 N = (200 kg) (-a)

a = (200 kg) / (200 N)

a = 1 m/s²

If you're also supposed to find the coefficient of kinetic friction, use the fact that the car the vertical forces cancel out, namely

n + (-w) = 0

where n is the magnitude of the normal force and w is the car's weight. The friction force f is proportional to the normal force n by a factor of µ, the coefficient of kinetic friction, such that f = µ n. Then

f / µ = w

(200 N) / µ = (200 kg) (9.80 m/s²)

µ = (200 N) / ((200 kg) (9.80 m/s²))

µ ≈ 0.102

Guys if you see this please help me

Answers

ur good , don’t worry .

Heat moves from hot to cold either through air or liquid

Answers

Answer:

both

Explanation:

because when it is hot in summer 5hat is the air and the sund u can warm things up and then it get hot

A man weighing 490 N on earth weighs only 81.7 N on the moon. His mass on the moon is ____ kg. (Use g=9.8 m/s²)

Answers

Answer:

mass= 50kg

since the mass is constant everywhere

Which shows the correct angle of reflection given the incident ray shown?

Answers

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Rays of light.

Since we know that, The light ray on a shiny surface makes a angle with the normal, hence The Angle of incidence is equal to angle of reflection made with Normal Axis in the middle.

Thus Option c.) is correct.

C.) is the Answer.

The angle of reflection given the incident ray from the given diagrams is option C.

What is the refraction of light?

When a light ray strikes the shining surfaces, the part of the light gets refracted. The bouncing back of the light is called reflection. When the light strikes the surface is called an incident ray.

When the light ray incident on the surface, the light returns back to the same medium is called reflection. The laws of reflection are, the angle of incidence is equal to the angle of reflection, and the incident ray, reflected ray, and normal takes place in the same plane. The speed of light remains the same in the process of reflection.

The reflected light ray changes the path of direction in the same medium. When a light ray enters from one medium to another, the speed of light gets decreases.

Thus, the ideal solution is option C.

To learn more about reflection:

https://brainly.com/question/28969632

#SPJ2

How does an object gain potential energy
A) by melting
B) by gaining speed
C) by cooling to a lower temperature
D) by being raised above the ground

Answers

Answer:

d

Explanation:

Answer:

D

Explanation:

Gravitaional potential energy is energy that is stored by moving an object to a greater height above the ground.

im not sure if its right, but i tried :)

PLEASE HELP. I'LL GIVE BRAINLIEST TO CORRECT ANSWER.
There are several ways to model a compound. One type of model is shown.

4 C's are connected in a line by 3 black lines. The C on the left has 3 H's attached to it each by a black line. The next C has 1 H attached by a black line and 1 O attached by 2 black lines. The next C has 2 H's attached to it by 1 black line each. The last C has 2 H's attached to it by 1 black line each and 1 O attached by a single black line. That O has an H attached to it by 1 black line.
What is the chemical formula for the molecule represented by the model?

CHO
C4H9O2
C4H8O
C3H8O2

Answers

Answer:

C

Explanation:

Edge2020

explain why wind and wave power could not be relied on to provide a country's entire electricity supply .​

Answers

Answer:

because if the plant that produced that type of energy broke down you would need another type of energy to replace it.

Explanation:

What is the main difference between protons and neutrons
A protons have a much smaller mass than neutrons
B protons have a much larger value than neutrons
C protons have an electrical charge but neutrons have no charge
D protons make up the nucleus but neutrons orbit around the nucleus

Answers

Answer:

C: Protons have an electrical carge but neutrons have no charge.

Explanation:

Protons are positively charged, neutrons are neutrally charged, and electrons are negatively charged.

PLEAASSEEEE HELLLPPPP !!!

Answers

Answer:

a = 3.5 m/s^2

Explanation:

a basic equation of physics is f = ma

we can rearrange that to a= f/m

so plug in your values: a = 175 / 50

you get a = 3.5 m/s^2

Reflection is when waves bounce back and Rarefactions are when waves change speed in a new medium.
true or false

Answers

Answer:

False

Explanation:

If I am not mistaken reflection is when light bounces off of a surface such as snow,water,glass ect. and refraction is when,the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density?

An object is traveling with a constant velocity of 5 m/s. How far will it have gone after 7 s?

Answers

Answer:

35 miles

Explanation:

5 times 7

Ummmm ya girl needs help

Answers

Hydrogen 1
Nitrogen 1
Oxygen 3

hydrogen: 4

nitrogen: 4

oxygen:  12

this should be correct

can someone please answer these in the next 20 minutes. ill give you a brainiest. thanks! :)

Answers

Answer:

1. 2380m

2. 13.6m

3. 132 Hz

Did you mention the correct independent variable – the substance’s properties (such as solubility, conductivity, and state of matter)?
yes
no
somewhat


Did you mention the correct dependent variable – the type of bond, ionic or covalent?
yes
no
somewhat

Answers

Answer:

1. Somewhat 2.Yes

Explanation:

Answer:

C,a

Explanation:

What is a living thing?

Answers

The answer to the question is an orgamisn

Answer:

The thing having life are called living things

Other Questions
PLEASE HELP ASAP!!! my class is about to ennnd! the ratio of horeses to chickens on a farm is 9:4 if theres a total of 39 animals how many chickens are on the farm what is the slope of the line that passes through the points A(-2,-1) and D (3,5)? in a market segment approach, which statement below dose not apply A girl swings a 0.250 kg rock attached to a taut string in a circle around her head. Her hand holds the end of the string above her head, and the string angles down slightly (11.9 below the horizontal.). The string is massless and 0.75m long.A coordinate system lies with its origin a the location where the string comes out of the girl's hand. The positive z-axis points vertically. the projection onto the horizontal plane is such that the string makes an angle of 34.6 with the x-axis.At a certain instant, the rock makes 2.50 revolutions per second (rev/s) in a counterclockwise direction as seen from above.What is the tangential velocity vector at this instant? Which statement is true about photosynthesis?A: photosynthesis happens in The mitochondriaB:During photosynthesis energy from the sun is stored in the chemical bonds of glucose molecule C: photosynthesis releases energy to the environmentD: One of the inputs of photosynthesis is oxygen Recruiting new employees via the Internet allows companies to _________.a.Reach candidates from across the worldb.Conduct recruiting sessions from the officec.Gather rsums and cover letters paperlesslyd.All of the above Mrs. Sung gave a test in her trignonmetry class. The scores were normally distributed with a mean of 85 and a standard deviation of 3.What percent would you expect to score between 88 and 91? Round answer to the nearest tenth. Which is the slope of the line that passes through the points (-2, 4) and(5, -1)? Car 1 of mass m1 is waiting at a traffic light.Car 1 is struck from behind by Car 2 of mass m2.The two cars stick together after the collision.Car 2 was traveling at v2i = 30.0 m/s before the collision.What is the initial kinetic energy, in [J], of car 1, if m1= 2500kg? Which statement BEST describes how muscles respond to weight training? A. Weight training stretches the muscles' limits and makes the muscles longer. B. Weight training pushes the muscles' abilities, making the muscles gain endurance. C. Weight training stimulates the muscles and causes the muscle fibers to sit closer together. D. Weight training overloads muscles, which causes the body to respond by making muscle fibers larger. Please select the best answer from the choices provided. A B C D Please help me! The basketball team of Martin Luther King High School won 12 of its first 15 games. Then it won its next 3 games. The percent of winning games was: (A) 80% (B) 75% (C) 60% (D) 83 1/3 % (E) 78% what is a founding influences of the The Minoans What is the solution to the system of equations graphed below (2,-3)(-3,2)(-2,3)(3,-2) what is the answer for 8 4/7 15 complete the table by determining the y values y=2+3 it is sunny today is that whether or climate this isn't chemistry but... how many grams in 1.7x 10^7 ug Students measuring the mass of a metal block record 2.985 g, 3.051 g, 3.102g, and 3.211 g. Which other measurement of the block's mass would be mostprecise?A. 2.804 gB. 3.1159C. 3.418 gD. 3.509 g (03.07)Solve x2 + 6x + 4 = 0. (1 point)